The Bharatiya Janata Party Thursday demanded that the minister involved in approving the government affidavit that said there is no evidence to establish existence of Lord Ram be dismissed.

"Any minister, whether culture or of any other portfolio, (Ambika Soni is minister for culture) if found involved in approving this blasphemous affidavit must be sacked. Action should also be taken against officials who prepared it," BJP chief Rajnath Singh told PTI over phone from Assam as Union Law Minister H R Bharadwaj announced that a supplementary affidavit would be filed in the Supreme Court.

Singh's comments came as his predecessor L K Advani held a meeting of party office-bearers to chalk out the saffron party's strategy over the government's submission in the Supreme Court in connection with the Sethusamudram project.

Earlier in the day, Singh warned the Centre that his party would launch a nationwide movement if it did not immediately withdraw its affidavit that there was no historical evidence to prove Lord Ram's existence.

"The government has set in motion the process of questioning religious beliefs. We will launch a nationwide movement if it does not withdraw immediately this blasphemous submission questioning the very existence of Lord Ram," Singh said.

He also accused the government of insulting the Constitution, which he said contained images of Ram, Sita and Hanuman [Images].

"The government has made an assault on Hindu sentiments, which cannot be tolerated at any cost," the BJP chief said.