"Baku" entered service in 1987, and was renamed "Admiral Gorshkov" in 1991, but was deactivated in 1996 because she was too expensive to operate on a post-Cold War budget. This attracted the attention of India, which was looking for a way to expand its carrier aviation capabilities. On 20 January 2004, after years of negotiations, Russia and India signed a deal for the sale of the ship. The ship would be free, while India would pay US$800 million for the upgrade and refit of the ship, as well as an additional US$1 billion for the aircraft and weapons systems. The navy looked at equipping the carrier with the E-2C Hawkeye, but decided not to. In 2009, Northrop Grumman offered the advanced E-2D Hawkeye to the Indian Navy.