The Congress has so far been on the fence of the Centre's executive order last month which nullified a Supreme Court order that upheld the elected government's control over bureaucrats.

Kejriwal, who plans to challenge the Centre's move in court, is attempting to gather support from the opposition parties.

He has already met several key opposition leaders including the Congress's Maharashtra allies Uddhav Thackeray and veteran leader Sharad Pawar.

On Thursday, he met the Congress ally in the south -- DMK chief and Tamil Nadu Chief Minister MK Stalin.

At the press briefing later, Kejriwal made his message clear.

"The Congress should support this. Nitty gritty of a joint united opposition for 2024 polls can be worked out in the meeting scheduled," he said. 

Kejriwal has already sought a meeting with Congress chief Mallikarjun Kharge and Rahul Gandhi but is yet to receive a response. 

Meanwhile, he has the support of Congress allies Shiv Sena Uddhav Thackeray faction and Sharad Pawar.

Stalin too joined their ranks, promising support to block the Centre's bill in Rajya Sabha.

The AAP chief will meet the Congress's Jharkhand ally Hemant Soren next, on Friday.