"I dare Subramanian Swamy to go to court on Rafale Jet purchase," Singh said in a tweet, a day after Swamy threatened to take legal recourse if the government went ahead with Rafale jet deal with France saying there were shortcomings in the fighter aircraft.

Swamy, a National Executive member of BJP, had requested Prime Minister Narendra Modi not to go ahead with the Rafale deal, which was negotiated by the erstwhile UPA government.

The performance of the French jet "turned out to be worst of all the aircraft" in Libya and Egypt, Swamy claimed and said, "If the Prime Minister for some other 'compulsion' decides to go ahead with the deal, I will have no option but to approach the court in PIL to get it set aside."

Expressing surprise over India buying 36 'Ready to Fly' Rafale jets from France off the shelf during the visit of the Prime Minister, Singh wondered, "Is this the new Defence Purchase Policy of GOI? Would CAG/CVC please take notice." Through tweets, the Congress leader also took a dig at the working of the Modi dispensation.

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