Former CAG Vinod Rai has tendered his unconditional apology to Congress Leader Sanjay Nirupam in a defamation case registered by him.The matter arose after a case was filed by Nirupam in the Patiala House Court after he alleged that Rai was pressurised by Nirupam to keep the then Prime Minister, Manmohan Singh's name out of the CAG report on 2G spectrum.The affidavit filed by Rai stating...