"No high court will proceed with the matters relating to the constitutional validity of these laws," a three-judge bench headed by Justice A R Dave said.
Today's order prohibits high courts from hearing petitions challenging validity of the 121st Constitutional Amendment Act and the National Judicial Appointments Commission (NJAC) Act brought to replace the collegium system introduced in 1993.
On its part, Government contended that pleas challenging the validity of these laws are "premature" as they have still not been notified.
The bench said it will later decide as to whether these pleas are maintainable or not and if they should be referred to a larger bench and fixed the next hearing on March 17.
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The Attorney General vehemently opposed the plea for grant of stay, saying, "The passing of an Act is irrelevant. What is important is the date of notification."
He further said that a law becomes valid from the day it is brought into force through its notification and "validity of a law can be tested only when the law is notified".
The system, prevailing before the introduction of collegium system, had worked well and later, collegium system also worked well, but the new one is "healthier" as the judiciary, executive and the civil society have roles in it.