APARESH KUMAR SINGH, J.

1. Heard learned counsel for the parties.

2. In all these three writ petitions common issues are involved and the orders impugned dated 21.12.2011 in individual cases is in the same language as well.

3. The grievance of the petitioners is that they have been denied appointment by the respondent no. 2, National Thermal Power Corporation Limited New Delhi on the ground that they had failed to produce certificate/document to show that they belong to OBC (non-creamy layer) category as declared in the central list by the respondent no. 1, Union of India.

4. Since common issues are involved, the writ petitions have been heard and are being decided after hearing the contention of the rival parties. Facts as are borne out from the pleadings of individual writ petitions are also not in dispute so far as relevant dates are concerned. The respondent no. 2, NTPC Ltd. issued the Advertisement for filling up 520 posts of Executive Trainee. The cut off date was up to 12.03.2011 for making on line application as per the Advertisement at Annexure-2 in W.P. (S) No. 382 of 2012. All these petitioners applied claiming themselves belonging to OBC (non-creamy layer). The