After a privilege motion is moved in parliament it is left to the presiding officer to take a decision of its reference to the privileges committee of the house. In case of Robert Vadra also these same rules apply and every member of parliament is aware of them. But then, Robert Vadra is the son-in-law of Sonia Gandhi, the leader of a century-old party.

Hence, the Congress party was at pains to act in every manner to save the son-in-law. The Congress on Thursday approached the speaker to plead for removal of "irrelevant" references against Vadra. Leader of the Congress in the Lok Sabha Mallikarjun Kharge led a delegation of party leaders to speaker Sumitra Mahajan and handed over a letter to press its case.

Meanwhile, the speaker has referred the breach of privilege motion against Vadra to the privileges committee of parliament.

On Thursday the Lok Sabha erupted when BJP member Prahlad Joshi referred to a Facebook post by Vadra. Joshi said Vadra had "demeaned" Parliamentarians and wanted the issue to be referred to the privileges committee and he be summoned to the house.

Backing his party colleague, BJP MP Arjun Ram Meghwal said, "Robert Vadra insulted Parliament and MPs in his Facebook post. Action must be taken against Robert Vadra."

His remark angered Sonia Gandhi who rose to protest strongly, leading her party members who intensified their slogan-shouting against the government.

Amid the din, Kharge went to Mahajan to say that Joshi's remarks should be immediately expunged as Vadra is not a member of the House.

In his Facebook post, Vadra had taken a dig at the NDA leaders without naming anybody before the Monsoon session began on July 21.

"Parliament begins and so do their petty diversionary political tactics... People of India are not fooled. Regret to see India led by such so-called leaders!!," he said.