Some members of the Congress raised the issue as they have some mis-perception about it, the sources said, adding Gokhale also explained to them that the submarine will only have conventional weapons.
The sanctions were imposed for Moscow's alleged meddling in the US presidential election in 2016.
In October last year, India inked an agreement with Russia to procure a batch of the missile systems at a cost of Rs 40,000 crore. India went ahead with the deal notwithstanding the US's warnings against it.
Under the deal for submarine, Russia will have to deliver an Akula class submarine, to be known as Chakra III, to the Indian Navy by 2025.
It will be the third Russian submarine to be leased to the Indian Navy.
The first Russian nuclear-powered submarine -- christened INS Chakra -- was taken in 1988 under a three-year lease. A second INS Chakra was taken on lease in 2012 for a period of 10 years.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)