By the writ petition the petition ers had challenged the legality and propriety of the grant of licence by the Calcutta Municipal Corporation of the subsoil of Satyanarayan Park to respondent No. 14 Messrs Happy Homes & Hotels Private Limited for a period of 30 years for the implementation of a development scheme, name ly, construction of a two storeyed airconditioned under ground basement market and parking place on mani fold grounds inter alia that the construction of the said under ground market would affect the ecological balance because the park was situate in a densely populated area like Burra bazar in the Metropolitan City of Calcutta, that the con struction would effect traffic jams in or about the said area leading to a further ecological imbalance and that the Corporation had no authority to grant the licence of the subsoil of the park for the implementation of any develop ment scheme which was not for the development of the park by way of a proper and adequate or proper utilisation of such park.