New Delhi, Sep 12 (ANI): Political leaders on Friday react as Former CAG Vinod Rai alleged that former Prime Minister Manmohan Singh could have easily prevented 2G scam, coal blocks allocation scam and the Commonwealth Games scam, had he used his stamp of authority. BJP leader Sambit Patra supported Rai and said that Manmohan Singh could not do anything as he was a puppet in the hands of 'unnamed puppeteers'. Congress leader PC Chacko said that the former PM had no knowledge of the irregularities then and that Rai should think before pointing at one of the most honest man in India. NCP leader Majid Memon questioned on the timing of Rai's revelations. JD (U) leader Ali Anwar said that Vinod Rai is talking like a politician and that there seems an involvement of his vested interest in the same. Meanwhile, SP leader Naresh Agarwal said that there should be a law to punish those who reveal facts after leaving the position from the concerned authority.