India and Russia are negotiating for building four more "Talwar" frigates for the Indian Navy. In September 2016, it was reported that India would acquire two s from Russia and remaining two will be built in India. The deal was signed in October 2016. These frigates are based on the "Talwar" class and were to be commissioned into the Russian Navy, but after the Ukrainian Conflict, Ukraine refused to supply any more engines for the Russian ships. So far, only two of the six have been commissioned by Russia. In August 2017, the Indian Defence Acquisition Council (DAC) cleared a proposal of Rs 490 crore to buy two gas turbines from Zorya-Mashproekt in Ukraine for the s being built in Russia.