National Green Tribunal Act (19 of 2010) , S.14, S.2(1)(m)— National Green Tribunal – Jurisdiction of – Scope – Tribunal can exercise jurisdiction when a substantial question relating to environment including enforcement of any legal right relating to environment is involved and such question arises out of implementation of enactments specified in Schedule I – Applicant had alleged that while constructing roads in township, forest area known as Darkali forest was being destructed – Neither substantial question relating to environment had arisen, nor violation of any of the enactments specified in Schedule-I was alleged – Tribunal had committed gross error in assuming jurisdiction and giving directions untenable in law under the guise of exceptional circumstances applying the “Precautionary Principle.”