The Supreme Court is expected to pronounce decision on Wednesday on several review petitions filed related to verdicts in the 2G case. The apex court on Tuesday heard the pleas of the government the telcos.

The decision could be pronounced till late in the night on Tuesday as  a Bench of Justices G.S. Singhvi and K.S. Radhakrishnan heard these petitions in the chamber.

The petitions are related to the cancellation of 2G spectrum licences by the apex court on February 2 and the grant of sanction for prosecution of public servants.

Several petitions have been filed by various bodies, including the Centre, the telecom firms, the NGOs and former minister Raja, seeking various reliefs, including review, clarification and recall of the apex court''s order.

A supreme Court Bench comprising Justices GS Singhvi and AK Ganguly had passed a number of rulings in the 2G scam which also includes the verdict canceling the 122 2G spectrum licences allotted in 2008 during the tenure of the former Telecom Minister A Raja and had ruled that the first-come-first-served (FCFS) policy could not be used for the allocation of natural resources.

several petitions have been filed by various bodies, including the Centre, the telecom firms, the NGOs and former minister Raja, seeking various reliefs, including review, clarification and recall of the apex court's order.

The Janata Party chief Subramanian Swamy and lawyer and social activist Prashant Bhushan’s Centre for Public Interest Litigation (CPIL) have moved the apex court against the trial court order giving clean chit to Chidambaram in the scam.

Major telcos Tata Teleservices, Sistema Shyam TeleServices Limited (SSTL) and Uninor have also filed review petitions related to the SC verdict.