PTI, CHANDIGARH: Mounting attack against the BJP on Rafale deal issue, the Congress on Saturday asked the Centre how the price of the fighter aircraft went up when 'India-specific enhancements' for it were the same as were decided during the UPA rule.

Seeking replies from Prime Minister Narendra Modi and Defence Minister Nirmala Sitharaman, Congress spokesperson Randeep Singh Surjewala asked when the 'associated systems and weapons' were the same as approved by the Indian Air Force during UPA regime, then how did the cost per aircraft had gone up now.

Accusing the NDA government at the Centre of "compromising national security", the Congress leader asked why did the BJP-led Centre allegedly forego 'transfer of technology' and reduced the number of aircraft under Rafale deal from 126 to 36.