Continuing its probe into telecom spectrum scam, the ED had registered case, pertaining to the allocation of spectrum during the NDA regime.
It has named former telecom secretary Shyamal Ghosh, then deputy director general J R Gupta and few telecom companies for alleged irregularities in the grant of additional 2G spectrum during 2001-03, sources said.
The Enforcement Directorate has now summoned senior officials of Vodafone and Bharti Airtel for questioning next week, they said. They said the notice does not specify any particular officer by name and has been issued to managing directors of the companies or their authorised representatives.
When contacted, Vodafone spokesperson refused to comment on the matter while Bharti Airtel officials were not immediately available for comments. The CBI is also probing the 2G spectrum allocation during the NDA regime when late Pramod Mahajan was telecom minister.
In its FIR, the CBI had alleged there was a loss of Rs 508 crore to the state exchequer during 2001-07.
The Enforcement Directorate is probing any alleged violation of the prevention of money laundering law in the spectrum allocation.