New Delhi: The Central Bureau of Investigation (CBI) is gearing up to tighten the noose around Union Textile Minister Dayanidhi Maran in the 2G spectrum allocation scam. The agency is likely to question the Minister on the Aircel issue next week, following which the government may ask him to step down from the Cabinet.

Prime Minister Manmohan Singh in his briefing on Wednesday to the media made clear indications in this regard. When told about doubts being raised about the stability of his government, particularly in the light of problems with DMK, the Prime Minister said, "We have some points of tension but nobody wants an election at this stage."

Hence, it is evident that the upcoming cabinet reshuffle can prove quite costly for Maran.

Maran, who was the Telecommunication minister in 2004, is accused of forcing Aircel owner Sivasankaran to sell the shares of his company.

A senior CBI official said that investigation regarding the complaint filed by Sivasankaran is almost complete and soon the agency will quiz Maran in the case.

The decision regarding his questioning will be taken up in a high level meeting of the investigating agency on Friday after which a notice will be served to Maran. According to CBI sources, FIR against Maran can only be registered after his interrogation.

Evidently, the CBI also has sufficient evidences to prove Maran’s role in Aircel issue and lodge a FIR against him.

Notably, during the CBI interrogation, Siva group chief Sivasankaran alleged that he was forced by Maran during his stint as Communication Minister in UPA-I to sell his stake in Aircel to Maxis. Maxis are alleged to have invested about Rs 600 crore in the companies owned by the Maran family.