Speaking to reporters here, Nirupam said Pujari called on his residence landline on October 5 around 11.15 AM from a foreign number and he had filed a police complaint at the Versova police station.
According to Nirupam, he and his family members were threatened with dire consequences if he failed to tender a public apology over his remarks on the cross-LoC army action.
Nirupam, whose comment on surgical strikes sparked strong reactions from across political spectrum, sought to blame the BJP government on the alleged threat he received.
"Will Opposition leaders be now threatened through goondas (criminals and hooligans). I am a leader who is from the masses. Why am I being threatened," Nirupam asked.
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Unfazed by the attack over the issue, Nirupam said "earlier too such strikes have taken place. But now it has been politicised. Why should evidence not be demanded on the strikes. If Pakistan is campaigning against us, evidence should be placed. We are proud of our Army."
Earlier this week, Nirupam had questioned the veracity of the surgical strikes by the Army but the Congress leadership dissociated itself from his remarks, saying it had full faith in the armed forces.