Just as Putin visits New Delhi, India finalizes a deal that will pay about $2 billion to lease a nuclear-powered attack submarine from Russia. The sub would help India train sailors and refine nuclear-boat operations as it builds its own vessels. 

Bloomberg.com
India Clinches $2 Billion Russia Submarine Deal as Putin Visits
India will pay about $2 billion to lease a nuclear-powered submarine from Russia, according to people familiar with the matter, finalizing delivery...