"The Congress Party needs no sermon from a party and Prime Minister whose compromised track record on fighting terrorism is well known," said the usually mild mannered Dr Singh.
To hear more on this story, and others, click on the audio link above.
PM Narendra Modi greets ex PM Manmohan Singh during a ceremony to pay tribute to security officials who lost their lives in 2001 attack on Indian parliament Source: AAP-AP-Manish Swarup