New Delhi, Sept 26: Congress today asked the Prime Minister Atal Bihari Vajpayee to order the CBI to file a review of the verdict of the Rae Bareli court in the Babri Masjid demolition case discharging Deputy Prime Minister L K Advani "to secure ends of justice". "CBI must keep itself above controversy and be seen independent.....And is expected to function according to law. It cannot work on whims or fancy. It should not only file a revision against the order of discharge of Advani but argue it diligently and forcefully", senior party leader P R Dasmunsi told Vajpayee in a letter. Releasing it at the AICC briefing, he contended that CBI's "departure" in the Rae Bareli court from its earlier submissions before the Lucknow court were "nothing but designed to protect your deputy prime minister with an intention to give him clear passage through the diluted chargesheet". Dasmunsi singled out the CBI for criticism saying the prime investigating and prosecuting agency should have placed all documents and material before the court on the "heinous crime" committed on Dec six, 1992. Bureau Report