The Supreme Court has asked the Centre to examine at the highest level the idea of conducting an independent nation-wide survey to identify below poverty line and Antodaya Anna Yojna families. A Bench comprising Justices Dalveer Bhandari and Deepak Verma said the Centre should try to allocate food grains to the poor on a realistic basis by relying on the latest poverty figures instead of depending on decades-old figures.The apex court made the remarks while dealing with a public interest litigation moved by Peoples Union for Civil Liberties, PUCL, complaining about large scale corruption in the country's public distribution system, PDS, and rotting of food grains in government godowns.The Bench also appreciated the affidavit filed by the Kerala government even as a number of states complained that the central allocation for PDS distribution is grossly inadequate.