( 1 ) BOTH the writ petitions have similarity on fact and in law as the controversies therein raised and reliefs sought for are common and identical. In both the cases the petitioners are the promoters, developers and builders and they have acquired respective plots of land by the side of VIP Road now (Kazi Nazrul Islam Avenue ). The petitioners in the first mentioned writ petition are concerned with premises Nos. 50/1, 50/2, 50/3, 50/4, 50/5, Gollaghata Street, kolkata - 700 048 situate within the jurisdiction of 24-Parganas (North ). The petitioners in the second mentioned writ petition are concerned with 290/1, canal Street, Kolkata. Both the aforesaid plots of land are situated within the south Dumdum Municipal area. The admitted fact on both the cases is that the petitioners acquired the lands and developed the same after having obtained permission from all concerned and, in fact, they have obtained sanction of the building plans originally for certain stories. There has been no objection, no difficulty at any point of time. After sometime they decided to increase the stories of the building or to improve the building. So, they applied for revision of the b