Per THAKKER C.K., C.J.:---In all these petitions, common questions of fact and law have been involved. It is, therefore, appropriate to deal with and decide all the petitions by a common judgment.

2. To appreciate the controversy raised in various petitions, few facts in the first matter, i.e. Writ Petition No. 305 of 1995, may now be stated.

3. The said petition is filed by Bombay Environmental Action Group, for an appropriate writ, direction or order directing authorities of the State Government as well as the Central Government to remove forthwith respondent Nos. 7 and 8 and other encroachers from the National Park and re-locate them in non-forest areas by demolishing all unauthorised and illegal structures from National Park. A prayer is also sought directing the respondents to take all necessary and precautionary steps, including construction of a boundary wall to prevent further encroachment and unauthorised structure in the said park. It is prayed that respondents be permanently restrained from providing encroachers any amenities and regularising in any manner encroachment and unauthorised structures in National Park. Legality and validity of the order dated 12th Febru