Rajya Sabha member Mr Amar Singh today appeared before the Delhi Police for questioning in the cash-for-vote scam.

Mr Singh drove to the Crime branch’s interstate cell in Chanakyapuri at 10.45 a.m. in his Mercedes car. He did not speak to the waiting media persons before entering the complex.

Mr Singh, the then General-Secretary of Samajwadi Party, is accused of sending bribe money to win over three BJP lawmakers during the 2008 trust vote.

His appearance before the police comes after the Delhi Police issued summons to him under Section 160 of the Criminal Procedure Code, asking him to present himself before the Crime branch.

The decision to call Mr Singh for questioning comes after the arrest of Mr Suhail Hindustani, who allegedly acted as a liaison between Mr Singh and BJP MPs.

On Sunday, police had arrested Mr Sanjeev Saxena, once considered close to Mr Singh who allegedly delivered cash to the MPs to vote in favour of the UPA during the trust vote.

The arrests and fresh investigations into the case have come after Delhi Police was slammed by the Supreme Court last week for its “callous” approach in this case.

Besides Mr Amar Singh, police is also expected to question Samajwadi Party MP Mr Reoti Raman Singh and BJP MP Mr Ashok Argal.

Questioning of BJP leader Mr L.K. Advani’s former aide Mr Sudheendra Kulkarni, who allegedly was behind sting operation to trap the bribe-givers, is also likely to take place.