New Delhi: Finance minister Arun Jaitley made a scathing attack on Rahul Gandhi in the Lok Sabha during the Rafale jet deal debate, saying a family whose name cropped up in three scams has the audacity to question others even as he alleged that the Congress President does not know what a combat aircraft is.Speaking after Gandhi made direct charges against PM Narendra Modi in the Rafale deal, Jaitley said the head of a party that ruled India for 60 years was expected to know better. He reiterated that the Rafale jets have been bought by the NDA government at 9% less than the price negotiated by the UPA dispensation and the cost of the planes with all the gadgets is 20% less than that of the previous government.Jaitley said it is a tragedy that the nation’s “Grand Old Party is today headed by a gentleman who doesn’t even understand what a combat aircraft is”.He alleged that Congress is harping on “?500 (crore) versus ?1,600 (crore)” – the price of the Rafale planes during UPA and NDA regimes. “There is a reason for that. Some people and families in India only understand the arithmetic of money... They don’t understand national security but only paisa,” he said. He invoked a dialogue from Ian Fleming’s James Bond series while attacking the Nehru-Gandhi family for its alleged involvement in past scams.“If it was one case, I may have given the family the benefit of doubt. In Bofors, the finger points to you, in National Herald the finger points to you, in AgustaWestland the finger points to you. Three is a bit too much… Bond had said if it happens once, it’s happenstance; if it happens twice, it’s a coincidence; but if it happens thrice, then it’s a conspiracy… And today conspirators who have played with India’s national security have the audacity to raise questions on a defence deal,” Jaitley said. Targeting Gandhi, Jaitley said he would have played in the lap of ‘Q’, an apparent reference to Ottavio Quattrocchi—allegedly involved in the Bofors case.Dismissing Gandhi’s allegations of irregularities in the Rafale deal, Jaitley said he “took unprecedented liberties with truth".