Justice M Duraiswami passed the interim order and directed issuance of notice to the Speaker.
Citing pending disqualification proceedings against 19 MLAs loyal to Dhinkaran after their rebellion against Chief Minister K Palaniswami, the petitioners submitted that they apprehended that the Speaker might disqualify the legislators.
This may go in favour of the chief minister in case of a floor test to prove his majority, they contended.
Vetrivel, who filed an impleading petition, submitted he had apprehension that he might be disqualified by the Speaker during the proceedings initiated on a prayer by the government Chief Whip.
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After the whip sought disqualification of the 19 MLAs under the anti-defection law, the Speaker had issued notices to them seeking their response, the time limit for which ended today.
Narayan stated this in response to a directive by the judge earlier in the day asking him to ascertain from the Speaker whether he intended to pass any order on the matter.
Senior counsel Kapil Sibal, appearing for Stalin, submitted that the Speaker might pass an order disqualifying the 19 MLAs and might conduct the floor test on Sunday so that they would not have time to approach the court for relief.
The Speaker's counsel submitted that the court cannot interfere in the process of a constitutional authority such as the Speaker.
Once the constitutional process was over and if any order was passed, then a judicial review would always be available to the aggrieved parties, he submitted.
The court cannot act based on apprehensions and expect the Speaker to reply whether he was going to take a decision today or tomorrow, he said.
Sibal argued that even issuing privilege notices to 21 DMK MLAs over their action in displaying banned 'gutkha' in the assembly had been done only with the malafide intention to save the government.
In his petition, Stalin, the working president of DMK, also wanted the floor test to be held under the supervision of an independent observer appointed by the high court.
Stalin, the Leader of the Opposition in the assembly, sought a direction to the chief minister, restraining him from taking any major policy decision, pending the disposal of his petition.
Besides the withdrawal of support by the 19 MLAs, the 98 MLAs of the DMK and its allies in the opposition had expressed their "unequivocal no-confidence" in the government, he claimed.
The AIADMK has 134 members excluding the Speaker.