The Delhi government had asked Sorabjee whether Rule 55(1) of Transaction of Business Rules violates the Constitution and does the Central government have the power to make that rule under section 44 of the Government of NCT of Delhi Act.
"My opinion was that Rule 55 (1) of the Transaction of Business Rules is ultra-vires. That rule requires a Lt Governor's reference to the Central government," Sorabjee said.
He added that although his opinion was taken, which may be "good and sound weighty" but it was not a Supreme Court judgment.
"So, till the rule is said or struck under the court, I think the LG has to follow the rule," he said.
Sorabjee said he was disappointed with the way AAP government."I have said it in one of my columns that I have sympathy for them because they have struck a chord against corruption... But I am afraid that they have been swept away by over enthusiasm.
"I hope the movement that started with a bang does not end with a whimper," he said.