DoT has appointed special auditors to verify the revenues of major telecom companies like Bharti Airtel, Vodafone Essar, Idea Cellular and Tata Teleservices Limited (TTSL). For Bharti Airtel, the audit will be undertaken by Nayak and Kishnadwala, while for Idea Cellular it will be done by Chhajed and Doshi. S.K.

Mehta and Company will audit the books of Vodafone Essar, and Varma and Varma will do so for TTSL.