"DoT is expected to clear the Vodafone-Idea merger on Monday. The certificate will be handed to them," said an official source.

Idea and Vodafone have decided to combine their operations to create the country's largest telecom operator worth over $ 23 billion (or over Rs 1.5 trillion), with a 35 per cent market share and a subscriber base of around 430 million.

Idea and Vodafone have decided to combine their operations to create the country's largest telecom operator worth over $ 23 billion (or over Rs 1.5 trillion), with a 35 per cent market share and a subscriber base of around 430 million.

The combined debt of both the companies is estimated to be around Rs 1.15 trillion.

"The merger will be taken on-record after Idea furnishes required bank guarantee and gives undertaking of owning the liabilities of Vodafone India that may arise in future," the source said.

The Department of Telecom (DoT) will seek a bank guarantee of around Rs 21 billion pertaining to one-time spectrum fee of Idea Cellular and undertaking that the resultant will clear dues pertaining to one-time spectrum fee and other sub-judice matter in accordance with the court's order.

Idea will be asked to replace one-year bank guarantee of Vodafone India submitted for deferred spectrum payment.

Vodafone and Idea will have to give undertaking of clearing dues that are sub-judice as per decision of the courts, the source said.

Idea will hold extraordinary general meeting on June 26 to change its name to Vodafone Idea Limited following the completion of merger.

Vodafone will own 45.1 per cent in the combined entity, while Kumar Mangalam Birla-led Aditya Birla Group would have 26 per cent and Idea shareholders 28.9 per cent.

Birla is proposed to be the non-executive chairman of the merged entity and Balesh Sharma is likely to be the new CEO.

Idea's chief financial officer Akshaya Moondra will head the financial operations of the new entity as its CFO. Ambrish Jain (currently the deputy MD at Idea Cellular) is set to become the new chief operating officer.