The writ petition is filed challenging the impugned proceedings of the 1st respondent dated 10.02.2003, in which the revision petition filed by the 6th respondent and others has been allowed by the 1st respondent setting aside the order of the District Collector, Chennai dated 11.05.2002, under which the District Collector has directed the Tahsildar to effect change in the patta in favour of the appellants, namely M/s. R. Shanmugam and Dhandapani.

2. Petitioners 1 to 3 are the legal heirs of the said R. Shanmugam. M. Dhandapani, the 4th petitioner died during the pendency of the writ petition and in his place, his legal representatives were impleaded as petitioners 5 and 6. The said Dhandapani, 4th petitioner and Shanmugam, the husband of the 1st petitioner and father of petitioners 2 and 3 were the adjoining owners of land in question and due to their joint development, they have common interest. The petitioners are the owners of the property bearing Survey No.257 of Velachery Village, measuring an extent of 4.20 acres consisting of 52 plots in the approved layout called "Bala Murugan Nagar". Out of the total extent of 4.20 acres, R. Shanmugam was the owner of 2.10 acre