Everything is going like clockwork at the PMO. Kapil Sibal has refuted every allegation made by Raja on behalf of Manmohan Singh, Chidambaram and himself. But Raja’s statement has far reaching consequences. Sources say that the Prime Minister and his former Principal Secretary TKA Nair are a worried lot. It was a tough decision for Singh to appoint Pulok Chatterji as Principal Secretary in place of Nair.