New Delhi: Rajya Sabha proceedings were on Tuesday adjourned for an hour after uproar by the opposition Congress over developments in Karnataka that have threatened the survival of the party's coalition government in the state.

Congress members stormed into the well of the House shouting slogans against the ruling BJP, which it has blamed for instigating a rebellion within the Congress-JD(S) government in Karnataka.

The year-old Congress-JD(S) coalition government in Karnataka is on the brink of collapse after a spate of resignations by MLAs.

The Karnataka Assembly has 224 members, including one nominated MLA. The halfway mark in the 224-member Assembly is 113.

TMC members too trooped into the well over some issue concerning West Bengal, forcing chairman M Venkaiah Naidu to adjourn proceedings till 1200 hours.

This is the first adjournment that Rajya Sabha has witnessed since Parliament met for the maiden session of the Modi-2.0 government. TMC members trooped into the well but the issue they were raising could not be heard.

On June 21, one of the issues raised during the Zero Hour was delayed by the Centre with respect to according ST status to 11 communities recommended by the West Bengal government.

"As per rules, you cannot discuss the same issues twice in the same session," Naidu said, adding the House had functioned without disruption for 13 days but now it seems members were determined to disrupt.

"If you have decided to disrupt, I adjourn proceedings till 1200 hrs," he said.

Earlier, BJP leader Lokhandwala Jugalsinh Mathurji, who was elected to the Upper House from Gujarat in the bypolls last week, took oath as a member of the Rajya Sabha.