Chennai: The Attorney General has advised the Tamil Nadu Governor to convene the Assembly within a week for a floor test to decide whether caretaker Chief Minister O Panneerselvam or AIADMK ad hoc General Secretary V K Sasikala has majority.

This follows Governor Vidyasagar Rao writing to Attorney General Mukul Rohtagi seeking legal opinion on the current stalemate over government formation in the State.

Sources said, in his opinion, Rohatgi has stated that the Governor should call a special session and have a composite floor test. He has cited the 1998 Supreme Court judgement in the Jagdambika Pal case.

The apex court had ordered a floor test in the assembly in the case to determine who between the two claimants — Pal and Kalyan Singh — commanded the majority support for chief ministership of Uttar Pradesh.

The Supreme Court is likely to give a verdict tomorrow in a disproportionate assets case involving late J Jayalalithaa, Sasikala and others. The court may pronounce the judgement on a batch of appeals, including the one filed by Karnataka government against the High Court verdict acquitting prime accused Jayalalithaa and her close aide Sasikala.