The DoT had last week sent a detailed reply to all the issues raised by the CAG.
The government is understood to have left it to the Central Bureau of Investigation and Joint Parliamentary Committee to look into the alleged irregularities in the grant of licences to Aircel, which is owned by Maxis Telecom of Malaysia, and the involvement of former Telecom Minister Dayanidhi Maran in it.
The Department of Telecommunications' Wireless Planning and Coordination arm has moved a note to issue start-up spectrum of 4.4 MHz to four leading service providers offering GSM technology, whose applications have been pending from December 2006.
Sterling Infotech Group and Hutchison Essar Group have terminated the agreement, which contemplated acquisition of Sterling's Aircel and Aircel Cellular by Aircel Digilink India, a part of the Hutch Group.
The Telecom Commission is considering imposing fines of Rs 400 crore (Rs 4 billion) on seven telecom service providers for delay in commissioning of services. A note for this purpose was put up for consideration last month.
The minister said the companies have given representation which is being examined by the DoT before taking a final decision.
The company said that intense competition following the disruptive entry of a new player, legal and regulatory challenges, high level of unsustainable debt and increased losses had together caused significant "negative business and reputational impact".
Former Telecom Minister Dayanidhi Maran, his brother Kalanidhi Maran and six others, including four companies, were on Friday chargesheeted by the CBI in a special court in the Aircel-Maxis deal case arising out of the investigation in the 2G spectrum allocation scam.