CPI(M) today said the CBI enquiry into the alleged kickbacks paid by an Italian firm to clear the Rs. 3,600 crore deal for VVIP helicopters should be monitored by the Supreme Court. "We are not happy with the CBI probe announced by the government, because it acted against the VVIP helicopters matter only after it surfaced in Italy. So, we would like the CBI investigations under Supreme Court's monitoring," party politburo member Brinda Karat told a press conference here.

"The helicopters are so costly that even the United States had refused them on the cost factor when the company approached them. But India went ahead with purchasing the helicopters," Karat said.