( 1 ) THE writ petition, which is in the nature of public interest litigation, has been filed by the petitioner herein, which is an association of the residents of b Block, Naraina Vihar, New delhi. The petitioner has inter alia questioned the action of the respondents from converting a residential area into a commercial area by reallocating the shopkeepers, who were encroachers in the Ring Road, Naraina Vihar. According to the petitioner, the said encroachments had been removed for widening the Ring Road in Naraina Vihar. The petitioner contended that once the land use had been shown in the Zonal Development plan (hereinafter for the sake of brevity referred to as, zdp ) as residential area, the same cannot be changed except in accordance with Section 11a of the Delhi Development act,1957 (hereinafter for the sake of brevity referred to as, the said Act ).

( 2 ) THE contention of the respondents, on the other hand, is that the petitioner itself has wanted to construct a Community Hall on the land in question. The respondents would urge that in Master Plan,delhi-2001, which has been issued in supercession of the earlier Master plan,1960, Delhi had been divided into