Date of the Judgment: 18 February 2019
Citation: (2019) INSC 123
Judges: R.F. Nariman, J. and Navin Sinha, J.
Can the National Green Tribunal (NGT) directly hear appeals against original orders of pollution control boards, or must these appeals go through the designated appellate authorities first? The Supreme Court of India addressed this critical question concerning the NGT’s appellate jurisdiction in a case involving a copper smelting plant in Tamil Nadu. The court clarified the statutory framework for environmental appeals, emphasizing the importance of adhering to the prescribed hierarchical structure. This judgment has significant implications for environmental litigation and the functioning of the NGT.

Case Background

Sterlite Industries (India) Ltd. (now Vedanta Ltd.) operated a copper smelter plant in Thoothukudi, Tamil Nadu. The company received initial clearances and consent to operate from the Tamil Nadu Pollution Control Board (TNPCB) and the Ministry of Environment, Forest, and Climate Change (MoEF) in the mid-1990s. Production commenced on January 1, 1997. However, these clearances faced legal challenges, leading to a Madras High Court order in 2010 to shut down the plant.

In March 2013, nearby residents reported health issues due to emissions from the plant. The TNPCB issued a closure notice on March 29, 2013, which was stayed by the NGT on May 31, 2013, allowing the plant to resume production under certain conditions. The NGT later set aside the TNPCB closure order on August 8, 2013. Subsequently, in 2018, the TNPCB refused to renew the consent to operate, citing non-compliance with environmental regulations. This led to further orders for closure and disconnection of power supply, culminating in a Tamil Nadu government order for permanent closure on May 28, 2018.

These orders became the subject of a composite appeal before the NGT. The NGT eventually set aside these orders, leading to the present appeals before the Supreme Court.

Timeline:

Date Event
01.08.1994 Sterlite Industries received NOC from TNPCB.
16.01.1995 Environmental clearance by MoEF.
17.05.1995 State MoEF granted environmental clearance.
22.05.1995 TNPCB granted consent under Air Act and Water Act.
14.10.1996 TNPCB issued consent to operate the plant.
01.01.1997 Production commenced.
20.05.1999 TNPCB granted consent for production of phosphoric acid and hydrofluorosilicic acid.
21.09.2004 Supreme Court Monitoring Committee constituted.
19.04.2005 TNPCB issued consent to operate for expanded capacity.
28.09.2010 Madras High Court quashed environmental clearances and directed closure of the plant.
23.03.2013 Residents complained of health issues due to emissions.
24.03.2013 TNPCB issued show-cause notice.
29.03.2013 TNPCB directed closure of the unit under Section 31A of the Air Act.
31.05.2013 NGT stayed TNPCB closure order.
08.08.2013 NGT set aside TNPCB order dated 29.03.2013.
13.04.2016 TNPCB granted consent to operate for one year.
14.03.2017 TNPCB issued show-cause notice for violations.
07.09.2017 TNPCB granted renewal of consent to operate till 31.03.2018.
March 2018 Protests against proposed expansion.
09.04.2018 TNPCB refused renewal of consent to operate.
12.04.2018 Sterlite filed appeals before the appellate authority under Section 28 of the Water Act.
06.06.2018 Appellate authority adjourned appeals due to government order for permanent closure.
28.05.2018 Government of Tamil Nadu ordered permanent closure of the plant.
15.12.2018 NGT set aside the closure orders.
18.12.2018 Appellate authority closed appeals as infructuous.
22.01.2019 TNPCB rejected application for renewal of consent.

Course of Proceedings

The TNPCB’s initial closure order was stayed by the NGT, which allowed the plant to resume operations with conditions. However, the NGT’s order was challenged by the TNPCB before the Supreme Court. The NGT also set aside the TNPCB’s closure order in August 2013, which was again challenged before the Supreme Court.

In 2018, after the TNPCB refused to renew consent to operate, Sterlite filed appeals before the appellate authority under Section 28 of the Water (Prevention and Control of Pollution) Act, 1974. While these appeals were pending, the Tamil Nadu government ordered permanent closure of the plant. The NGT then took up a composite appeal against all the orders, including the government’s closure order. The NGT constituted a committee headed by a former Chief Justice to investigate the matter. The committee concluded that the closure orders were against natural justice and not justified. The NGT substantially accepted the committee’s recommendations and set aside the closure orders.

The TNPCB and the State of Tamil Nadu then appealed to the Supreme Court, primarily arguing that the NGT lacked the jurisdiction to entertain the appeals.

Legal Framework

The Supreme Court examined the following key legal provisions:

  • Section 18 of the Water (Prevention and Control of Pollution) Act, 1974: This section empowers the government to issue directions to the State Pollution Control Boards.
  • Section 25 of the Water (Prevention and Control of Pollution) Act, 1974: This section restricts new outlets and new discharges without the consent of the State Board.
  • Section 27 of the Water (Prevention and Control of Pollution) Act, 1974: This section deals with the refusal or withdrawal of consent by the State Board.
  • Section 28 of the Water (Prevention and Control of Pollution) Act, 1974: This section provides for appeals against orders made by the State Board under Sections 25, 26, or 27 to an appellate authority constituted by the State Government.
  • Section 29 of the Water (Prevention and Control of Pollution) Act, 1974: This section allows the State Government to revise orders made by the State Board.
  • Section 33A of the Water (Prevention and Control of Pollution) Act, 1974: This section empowers the Board to issue directions, including closure, prohibition, or regulation of any industry.
  • Section 33B of the Water (Prevention and Control of Pollution) Act, 1974: This section allows appeals to the NGT against orders of the appellate authority under Section 28, orders of the State Government under Section 29, and directions issued by the Board under Section 33A.
  • Section 21 of the Air (Prevention and Control of Pollution) Act, 1981: This section restricts the operation of industrial plants without the consent of the State Board.
  • Section 31 of the Air (Prevention and Control of Pollution) Act, 1981: This section provides for appeals against orders made by the State Board to an appellate authority constituted by the State Government.
  • Section 31A of the Air (Prevention and Control of Pollution) Act, 1981: This section empowers the Board to issue directions, including closure, prohibition, or regulation of any industry.
  • Section 31B of the Air (Prevention and Control of Pollution) Act, 1981: This section allows appeals to the NGT against orders of the appellate authority under Section 31.
  • Section 14 of the National Green Tribunal Act, 2010: This section defines the NGT’s jurisdiction over environmental disputes.
  • Section 16 of the National Green Tribunal Act, 2010: This section defines the NGT’s appellate jurisdiction, including appeals against orders under the Water Act and the Air Act.

Arguments

Arguments by the Tamil Nadu Pollution Control Board (TNPCB) and the State of Tamil Nadu:

  • The NGT acted without jurisdiction by directly entertaining appeals against original orders of the TNPCB and the State Government.
  • The order dated 09.04.2018 refusing consent to operate was appealable to the appellate authority under the Water Act and Air Act, and not directly to the NGT.
  • The orders dated 12.04.2018, 23.05.2018, and 28.05.2018, made under Section 33A of the Water Act and Section 31A of the Air Act, were composite orders. Orders under Section 31A of the Air Act are not appealable to the NGT, and therefore, the NGT could not have interfered with these orders.
  • The order dated 28.05.2018, issued by the Government of Tamil Nadu under Section 18 of the Water Act, was not an appealable order under either the Water Act or the NGT Act.
  • The NGT cannot exercise powers of judicial review over orders that are not specifically appealable under the statutes.
  • A party cannot bypass the appellate authority and directly approach the NGT.

Arguments by Sterlite Industries (Respondent):

  • The appeal before the appellate authority against the order dated 09.04.2018 had become infructuous due to the government’s order for permanent closure, making a direct appeal to the NGT maintainable.
  • The combined orders under Sections 33A and 31A of the Water Act and Air Act, respectively, were substantially orders under the Water Act and hence appealable.
  • The NGT has the power to correct orders under Section 14 of the NGT Act to avoid piecemeal litigation.
  • A direction under Section 31A of the Air Act is equivalent to an order under Section 31 of the Air Act and hence appealable.
  • The order dated 28.05.2018 of the Government of Tamil Nadu under Section 18 of the Water Act was not a valid order, as it dealt with a specific industry and not general matters.
  • The NGT, being an expert body, is better equipped to handle environmental matters than the High Court.
  • The NGT can exercise powers of judicial review and interfere with the State Government’s orders.
Main Submission Sub-Submissions by TNPCB and State of Tamil Nadu Sub-Submissions by Sterlite Industries
Maintainability of Appeals before NGT
  • NGT cannot directly hear appeals against original orders.
  • Appeals must go through the designated appellate authorities first.
  • NGT’s jurisdiction is limited to orders specifically appealable under the statutes.
  • Orders under Section 31A of the Air Act are not appealable to the NGT.
  • Orders under Section 18 of the Water Act are not appealable to the NGT.
  • Appeals before appellate authority became infructuous.
  • Combined orders under Water Act and Air Act were substantially under Water Act.
  • NGT can correct orders under Section 14 of NGT Act.
  • Directions under Section 31A of Air Act are equivalent to orders under Section 31.
  • Order under Section 18 of Water Act was not a valid order.
  • NGT is better equipped to handle environmental matters.

Issues Framed by the Supreme Court:

  1. Whether the NGT could directly entertain appeals against the original orders of the TNPCB and the State Government, or whether such appeals should have been filed before the designated appellate authorities first?
  2. Whether the orders passed under Section 33A of the Water Act and Section 31A of the Air Act were appealable to the NGT?
  3. Whether the order passed under Section 18 of the Water Act was appealable to the NGT?

Treatment of the Issue by the Court

Issue Court’s Decision Reason
Whether the NGT could directly entertain appeals against the original orders of the TNPCB and the State Government? No The NGT’s appellate jurisdiction is limited to orders of the appellate authorities under the Air Act and Water Act, not original orders. A direct appeal to the NGT is not permissible.
Whether the orders passed under Section 33A of the Water Act and Section 31A of the Air Act were appealable to the NGT? Partially Yes, Partially No Orders under Section 33A of the Water Act are appealable to the NGT. However, directions under Section 31A of the Air Act are not appealable to the NGT. The composite orders could not be split.
Whether the order passed under Section 18 of the Water Act was appealable to the NGT? No Orders under Section 18 of the Water Act are not appealable to the NGT. Such orders can only be challenged in a civil suit or under Article 226 of the Constitution of India.

Authorities

Authority Legal Point How the Authority was Used by the Court
Kundur Rudrappa v. Mysore Revenue Appellate Tribunal and Ors., (1975) 2 SCC 411 (Supreme Court of India) Appeal is a creature of statute. The Court relied on this case to emphasize that an appeal must be specifically provided for by statute and cannot be assumed.
Cellular Operators Association of India and Ors. v. Union of India and Ors., (2003) 3 SCC 186 (Supreme Court of India) Jurisdiction of a tribunal is conferred by statute. The Court cited this case to highlight that the jurisdiction of a tribunal is defined by the statute that created it.
B. Himmatlal Agrawal v. Competition Commission of India, Civil Appeal No. 5029/2018 (Supreme Court of India) Appellate Tribunal must act within the domain prescribed by law. The Court used this case to reinforce that an appellate tribunal cannot exceed its statutory powers.
Raja Soap Factory v. S.P. Shantharaj, (1965) 2 SCR 800 (Supreme Court of India) High Court’s jurisdiction is defined by statute. The Court referred to this case to show that a High Court’s original jurisdiction is limited to matters specifically invested by statute.
Northern Plastics Ltd. v. Hindustan Photo Films Mfg. Co. Ltd. and Ors., (1997) 4 SCC 452 (Supreme Court of India) Statutory procedure for appeals must be followed. The Court cited this case to emphasize that statutory procedures for appeals must be strictly adhered to.
Manohar Lal v. Ugrasen, (2010) 11 SCC 557 (Supreme Court of India) Appellate authority cannot take over the task of a lower statutory authority. The Court relied on this case to clarify that an appellate authority cannot exercise the powers of a lower statutory authority.
Arcot Textile Mills Ltd. v. Regional Provident Fund Commissioner, (2013) 16 SCC 1 (Supreme Court of India) Right of appeal is a creature of statute. The Court cited this case to reiterate that a right of appeal must be expressly provided by statute.
Smith v. East Elloe Rural District Council, [1956] 1 All E.R. 855 (English Court) Administrative order does not bear the brand of invalidity on its forehead. The Court referred to this case to highlight that an administrative order is valid until set aside by a competent authority.
State of Punjab v. Gurdev Singh, (1991) 4 SCC 1 (Supreme Court of India) Administrative order does not bear the brand of invalidity on its forehead. The Court followed this case to highlight that an administrative order is valid until set aside by a competent authority.
Tayabbhai M. Bagasarwalla v. Hind Rubber Industries (P) Ltd., (1997) 3 SCC 443 (Supreme Court of India) Administrative order does not bear the brand of invalidity on its forehead. The Court followed this case to highlight that an administrative order is valid until set aside by a competent authority.
Pune Municipal Corpn. v. State of Maharashtra, (2007) 5 SCC 211 (Supreme Court of India) Administrative order does not bear the brand of invalidity on its forehead. The Court followed this case to highlight that an administrative order is valid until set aside by a competent authority.
Krishnadevi Malchand Kamathia v. Bombay Environmental Action Group, (2011) 3 SCC 363 (Supreme Court of India) Administrative order does not bear the brand of invalidity on its forehead. The Court followed this case to highlight that an administrative order is valid until set aside by a competent authority.
Kandla Port v. Hargovind Jasraj, (2013) 3 SCC 182 (Supreme Court of India) Administrative order does not bear the brand of invalidity on its forehead. The Court followed this case to highlight that an administrative order is valid until set aside by a competent authority.
Garikapati Veeraya v. N. Subbiah Choudhury, 1957 SCR 488 (Supreme Court of India) Right of appeal is a substantive right. The Court cited this case to emphasize that the right to appeal is not a procedural matter but a substantive one.
Re: Special Reference, (1965) 1 SCR 413 (Supreme Court of India) Distinction between superior court of record and courts of limited jurisdiction. The Court referred to this case to emphasize the difference between a superior court and a court of limited jurisdiction.
Bharat Sanchar Nigam Limited v. Telecom Regulatory Authority of India and Ors., (2014) 3 SCC 222 (Supreme Court of India) Tribunal exercising appellate jurisdiction cannot strike down rules or regulations made under the Act. The Court relied on this case to clarify that the NGT, as an appellate body, cannot strike down rules or regulations.
Kanhiya Lal Omar v. R.K. Trivedi, (1985) 4 SCC 678 (Supreme Court of India) A “direction” may be equated with a specific or a general order. The court distinguished this case as the context of Article 324 was different.
Maharashtra State Board of Secondary and Higher Secondary Education v. Paritosh Bhupeshkumar Sheth, (1984) 4 SCC 27 (Supreme Court of India) Courts should avoid decisions that make the system unworkable. The court distinguished this case and stated that it cannot provide an appeal where there is none.
Galada Power & Telecommunication Ltd. v. United India Insurance Co. Ltd., (2016) 14 SCC 161 (Supreme Court of India) Right of appeal can be waived. The court distinguished this case as the question was not whether an appellant may waive a statutory right of appeal but whether the NGT has the jurisdiction to hear a direct appeal.
Allokam Peddabbayya v. Allahabad Bank, (2017) 8 SCC 272 (Supreme Court of India) Right of appeal can be waived. The court distinguished this case as the question was not whether an appellant may waive a statutory right of appeal but whether the NGT has the jurisdiction to hear a direct appeal.
L. Chandra Kumar v. Union of India and Ors., (1997) 3 SCC 261 (Supreme Court of India) Tribunals have powers of judicial review. The court distinguished this case as it pertained to tribunals under Article 323A of the Constitution and not statutory tribunals.

Judgment

Submission by Parties Court’s Treatment
The NGT can directly hear appeals against original orders. Rejected. The NGT’s appellate jurisdiction is limited to orders of the appellate authorities under the Air Act and Water Act.
The appeal before the appellate authority against the order dated 09.04.2018 had become infructuous. Rejected. The appeal was pending before the appellate authority when the NGT took up the matter.
The combined orders under Sections 33A and 31A of the Water Act and Air Act, respectively, were substantially orders under the Water Act and hence appealable. Rejected. The orders were composite orders, and orders under Section 31A of the Air Act are not appealable to the NGT.
A direction under Section 31A of the Air Act is equivalent to an order under Section 31 of the Air Act and hence appealable. Rejected. The statutory scheme does not provide an appeal against directions under Section 31A.
The order dated 28.05.2018 of the Government of Tamil Nadu under Section 18 of the Water Act was not a valid order. Rejected. The order is valid until set aside by a competent authority.
The NGT, being an expert body, is better equipped to handle environmental matters than the High Court. Rejected. The NGT’s jurisdiction is defined by statute, and it cannot exercise powers beyond its statutory limits.
The NGT can exercise powers of judicial review and interfere with the State Government’s orders. Rejected. The NGT does not have a general power of judicial review like the High Courts.
The doctrine of necessity applies if an appellate authority is not properly constituted. Rejected. A leapfrog appeal to the NGT cannot be countenanced.

How each authority was viewed by the Court?

  • The Court relied on Kundur Rudrappa v. Mysore Revenue Appellate Tribunal and Ors. [CITATION] to emphasize that an appeal must be specifically provided for by statute.
  • The Court cited Cellular Operators Association of India and Ors. v. Union of India and Ors. [CITATION] to highlight that the jurisdiction of a tribunal is defined by the statute that created it.
  • The Court used B. Himmatlal Agrawal v. Competition Commission of India [CITATION] to reinforce that an appellate tribunal cannot exceed its statutory powers.
  • The Court referred to Raja Soap Factory v. S.P. Shantharaj [CITATION] to show that a High Court’s original jurisdiction is limited to matters specifically invested by statute.
  • The Court cited Northern Plastics Ltd. v. Hindustan Photo Films Mfg. Co. Ltd. and Ors. [CITATION] to emphasize that statutory procedures for appeals must be strictly adhered to.
  • The Court relied on Manohar Lal v. Ugrasen [CITATION] to clarify that an appellate authority cannot exercise the powers of a lower statutory authority.
  • The Court cited Arcot Textile Mills Ltd. v. Regional Provident Fund Commissioner [CITATION] to reiterate that a right of appeal must be expressly provided by statute.
  • The Court referred to Smith v. East Elloe Rural District Council [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court followed State of Punjab v. Gurdev Singh [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court followed Tayabbhai M. Bagasarwalla v. Hind Rubber Industries (P) Ltd. [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court followed Pune Municipal Corpn. v. State of Maharashtra [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court followed Krishnadevi Malchand Kamathia v. Bombay Environmental Action Group [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court followed Kandla Port v. Hargovind Jasraj [CITATION] to highlight that an administrative order is valid until set aside by a competent authority.
  • The Court cited Garikapati Veeraya v. N. Subbiah Choudhury [CITATION] to emphasize that the right to appeal is not a procedural matter but a substantive one.
  • The Court referred to Re: Special Reference [CITATION] to emphasize the difference between a superior court and a court of limited jurisdiction.
  • The Court relied on Bharat Sanchar Nigam Limited v. Telecom Regulatory Authority of India and Ors. [CITATION] to clarify that the NGT, as an appellate body, cannot strike down rules or regulations.
  • The court distinguished Kanhiya Lal Omar v. R.K. Trivedi [CITATION] as the context of Article 324 was different.
  • The court distinguished Maharashtra State Board of Secondary and Higher Secondary Education v. Paritosh Bhupeshkumar Sheth [CITATION] and stated that it cannot provide an appeal where there is none.
  • The court distinguished Galada Power & Telecommunication Ltd. v. United India Insurance Co. Ltd. [CITATION] as the question was not whether an appellant may waive a statutory right of appeal but whether the NGT has the jurisdiction to hear a direct appeal.
  • The court distinguished Allokam Peddabbayya v. Allahabad Bank [CITATION] as the question was not whether an appellant may waive a statutory right of appeal but whether the NGT has the jurisdiction to hear a direct appeal.
  • The court distinguished L. Chandra Kumar v. Union of India and Ors. [CITATION] as it pertained to tribunals under Article 323A of the Constitution and not statutory tribunals.

What weighed in the mind of the Court?

The Supreme Court’s decision was primarily driven by the need to adhere strictly to the statutory framework governing environmental appeals. The Court emphasized that the NGT’s jurisdiction is defined by the statutes that created it—the Air Act, the Water Act, and the NGT Act—and that it cannot exercise powers beyond those specifically conferred. The Court was particularly concerned about the NGT bypassing the designated appellate authorities, which would undermine the hierarchical structure established by the statutes. The Court also highlighted that the right to appeal is a substantive right and must be expressly provided by law, and cannot be assumed. The Court also emphasized the distinction between the powers of a superior court and a court of limited jurisdiction, clarifying that the NGT does not have general powers of judicial review like a High Court under Article 226 of the Constitution.

Sentiment Percentage
Statutory Compliance 40%
Jurisdictional Limits 30%
Hierarchy of Appeals 20%
Substantive Right of Appeal 10%
Ratio Percentage
Fact 30%
Law 70%

Logical Reasoning:

Issue: Can NGT directly hearappeals against original orders of Pollution Control Boards?

Statutory Analysis: Air Act & Water Act prescribe appellate authorities.

Jurisdictional Limits: NGT’s appellate power is defined by statute.

Hierarchical Structure: Appeals must follow prescribed order.

Conclusion: NGT cannot directly hear appeals against original orders.

Ratio Decidendi

The Supreme Court held that the NGT’s appellate jurisdiction is limited to orders passed by the designated appellate authorities under the Air Act and Water Act and not against original orders of the Pollution Control Boards or the State Government. The Court emphasized that the NGT cannot bypass the prescribed appellate hierarchy and that a right to appeal must be expressly conferred by statute. The Court also clarified that directions issued under Section 31A of the Air Act are not appealable to the NGT, and that the NGT does not have the power of judicial review over orders that are not specifically made appealable under the statutes. The Court also held that orders made under Section 18 of the Water Act are not appealable to the NGT but can only be challenged in a civil suit or under Article 226 of the Constitution of India.

Obiter Dicta

The Court made several observations in passing, which are not binding as precedents but provide guidance. These include:

  • The importance of adhering to the hierarchical structure for appeals as prescribed by statute.
  • The need for tribunals to act within the jurisdictional limits defined by the statute.
  • The principle that an administrative order is valid until set aside by a competent authority.
  • The distinction between the powers of a superior court and a court of limited jurisdiction.
  • The right of appeal is a substantive right, not a procedural one, and must be expressly provided by law.

Dissent

There was no dissenting opinion in this case, as both judges on the bench agreed on the judgment.

Final Order

The Supreme Court allowed the appeals filed by the TNPCB and the State of Tamil Nadu. The Court set aside the order of the NGT, stating that the NGT had acted without jurisdiction by directly entertaining appeals against the original orders of the TNPCB and the State Government. The Court remanded the matter back to the appellate authority under the Air Act and Water Act for adjudication of the appeals filed by Sterlite Industries.

Impact of the Judgment

This judgment has significant implications for environmental litigation and the functioning of the NGT. Key impacts include:

  • Clarification of NGT’s Appellate Jurisdiction: The judgment clarifies that the NGT’s appellate jurisdiction is not as broad as some may have assumed. It cannot directly hear appeals against original orders of Pollution Control Boards or the State Government.
  • Importance of Appellate Hierarchy: The judgment reinforces the importance of adhering to the prescribed appellate hierarchy. Parties must first exhaust their remedies before the designated appellate authorities before approaching the NGT.
  • Limitations on NGT’s Powers: The judgment limits the NGT’s power of judicial review, clarifying that it cannot interfere with orders that are not specifically made appealable under the statutes.
  • Impact on Environmental Litigation: The judgment may lead to a more structured approach to environmental litigation, with parties being required to follow the prescribed appellate procedures.
  • Precedent for Future Cases: This judgment serves as an important precedent for future cases involving the NGT’s appellate jurisdiction.

Conclusion

In Tamil Nadu Pollution Control Board vs. Sterlite Industries (2019), the Supreme Court of India provided a significant clarification on the appellate jurisdiction of the National Green Tribunal (NGT). The Court emphasized that the NGT’s jurisdiction is limited to orders of the appellate authorities under the Air Act and Water Act, and not against original orders of Pollution Control Boards or the State Government. The Court held that the NGT cannot bypass the prescribed appellate hierarchy and that a right of appeal must be expressly conferred by statute. This judgment underscores the importance of adhering to statutory procedures and the limitations on the powers of tribunals. It serves as a crucial guide for environmental litigation and the functioning of the NGT in India.