"There are only two permission left in the amalgamation scheme of the Idea and Vodafone. It should be completed by end of the current financial year," an industry source, who did not wish to be named, told PTI.
Emails sent to Vodafone and Idea did not elicit any response.
Idea Cellular will hold a meeting of shareholders and creditors on October 12 to seek their approval for the amalgamation of Vodafone India's business with itself.
Reliance Communications on Sunday announced termination of mobile business merger deal with Aircel due to "Legal and regulatory uncertainties, and various interventions by vested interests" leading to "inordinate delays in receipt of relevant approvals for the proposed transaction".
Earlier this year, Vodafone India and Idea Cellular had agreed to merge their operations to create the country's largest telecom operator worth of more than USD 23 billion with a 35 per cent market share.
The combined entity of Vodafone India and Idea Cellular, which are currently India's number 2 and 3, respectively, would dislodge Bharti Airtel to counter the fierce price war in the world's second-largest telecom market.
The deal gives Vodafone India an implied enterprise value of Rs 82,800 crore and Idea Rs 72,200 crore.
Post the transaction, the British firm will own 45.1 per cent stake in the merged entity, while the Aditya Birla group, Ideas parent, will have 26 per cent after paying Rs 3,874 crore cash for a 4.9 per cent stake.
The remaining 28.9 per cent will be held by other shareholders.