"One need not be a wrestler or flex muscle to hold the post of Prime Minister. It also does not require for a person to use strong words to become a PM," Mukherjee told a meet-the-press programme at the Press Club here.

He said that after the attack on Parliament, the previous NDA government had talked about hot pursuit and amassed troops on the Indo-Pak border but nothing came of it.

"But after the Mumbai terrorist strike, we could mobilise global opinion against Pakistan. Pakistan foreign minister also admitted that those responsible for Mumbai attack were from Pakistan," he said.

To the BJP's statement that it would not re-negotiate the civil-nuclear deal if it came to power, Mukherjee replied, "It is fine. Good sense has prevailed on them."