Samajwadi Party MP Rewati Raman Singh will be quizzed on Monday by Delhi Police in connection with the cash-for-vote scam even as investigators are trying to trace the money trail in the alleged bribing of BJP MPs ahead of the July 2008 trust vote.
Investigators are also preparing to question BJP MP Ashok Argal, who was allegedly given the bribe money, and BJP leader L K Advani's former aide Sudheendra Kulkarni this week before police submit its status report to Supreme Court this Friday.
The probe in the three-year-old scam gathered momentum last week after Supreme Court came down heavily on Delhi Police for its "callous" investigations in the case and two persons -- Amar Singh's former aide Sanjeev Saxena and BJP worker Suhail Hindustani -- were arrested.
Rajya Sabha MP Amar Singh, who BJP alleges was behind the efforts to bribe its MPs, was also questioned after Saxena and Hindustani named him. Singh, however, denied any involvement in the scam.
"We have issued a notice to Rewati Raman Singh to appear before us tomorrow. We also plan to question Argal and Kulkarni before we submit the status report to Supreme Court. If something new comes up, Amar Singh may be called for questioning once again," a senior police official said.
However, sources said, Amar Singh may be called again only after the status report is filed in the Supreme Court.
Asked about the questioning of Rewati Raman, the 68-year-old Samajwadi Party MP, the official said they will ask him about the telephone call he received from Hindustani on the midnight of July 21 and 22.
Police had already given a virtual clean chit to Rewati Raman and others saying it was Hindustani only who tried to approach them for striking a deal for MPs to vote in favour of the UPA government.
Reacting to the summons issued to Rewati Raman and questioning of Amar Singh, SP chief Mulayam Singh Yadav said it was "injustice" and a "conspiracy to trouble" both the Parliamentarians.
Yadav claimed said former SP leader Amar Singh was not involved in bribing of BJP MPs. "We only helped by voting in their (Congress') favour. Did we join the government? Did Amar Singh or Rewati Singh become ministers? Had money changed hands, I would have known about it," he claimed.
Investigators believe that Hindustani is the "master orchestrator" of the scam and he tried to entrap leaders of Samajwadi Party and it was this purpose that he telephoned Rewati Raman.
Police claimed that none of the Congress leaders or SP leaders mentioned by Hindustani had made any effort to contact him to strike a deal.
A Delhi Police officer has already visited Jalupura in Rajasthan to enquire about the local association of Hindustani. He used to stay there a few years back in a rented accommodation.
Hindustani's family had a long association with the BJP in the state and his grandfather known as Sageer Miyan worked in Tonk and Ajmer.
Meanwhile, investigators are trying to find out how the money withdrawn from some bank accounts in Delhi found its way to the MPs.
The three BJP MPs -- Argal, Fagan Singh Kulaste and Mahavir Bhagora -- had displayed wads of notes worth Rs one crore in Lok Sabha during the trust vote debate.
"We traced some of the account holders after checking the serial numbers of the currency with banks. We are investigating how it landed with the MPs. This will help us in unravelling the scam," the official said.