The Rafale deal happened after "government-to-government" negotiations between India and France. It was done to fulfil the urgent requirement of the Indian Air Force, Goyal told reporters at the party office here.
He said that the strike capability of the air force was compromised due to requirement of aircraft.
"This shows the Congress's state of desperation as it is on a losing spree," he said.
Earlier in the day, Defence Minister Nirmala Sitharaman rebutted the allegations of the Congress and said that such bickerings were "disservice" to the armed forces.
The delivery of the jets is scheduled to begin in September 2019.
The Congress has raised several questions over the Rafale aircraft deal, including the rates, and had accused the government of compromising national interest and security while promoting "crony capitalism" and causing a loss to the public exchequer.
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