On the objection raised with regard to maintainability on behalf of subsequent purchasers, the contention is that the dismissal of the writ petition as withdrawn was not by the original tenure holders who are the petitioners herein,inasmuch as, none of the purchasers are the petitioners herein. It is further argued that though acquisition notifications were issued in the year 1990 but the possession of area 3200 sq. meter has not been taken for the fact that the house of the petitioners existed thereon. The contention is that the acquired land to the extent of 3200 sq. meter is required to be de-notified under section 48 of the Land Acquisition Act read with section 17 of the U.P. Urban Planning and Development Act, 1973.