Russians have been arguing that since India and Russia have a bilateral investment protection treaty, the Sistema investment should be insulated and protected.
New Delhi has, however, asserted that it is bound by the judgement of the Supreme Court in the 2G case.
Though the commercial agreement for reactors 3 and 4 at Koodankulam are far from being signed, a dozen other pacts spanning areas such as defence, energy and space are expected to be inked during Putin's visit on December 24.
He will be in India for the annual India-Russia summit.
Russia is keen on selling 42 Sukhoi SU-30MKI fighters worth Rs. 20,000 crore, 71 Mi-17V5 choppers worth Rs. 7,000 crore and providing long-term supply of 970 warplane engines.
The proposals to buy these weapons systems were discussed at the cabinet committee on security on Friday. However, it is not clear if the deals would be inked during Putin's visit next week.