Putin says Russia could work with India on Su-57 jet: As far as the Su-57 goes, at one point we proposed to our Indian friends to work together on this technology. It's fifth generation technology — I think it's the best in the world as of now. But back then, our Indian friends said: "Go ahead on your own, and then we will see — maybe we'll join." The aircraft could have been our joint project. We built it independently, but we are ready to work with India in this field — to supply this aircraft and to keep developing it. We don't have any issues with it, any limitations. The same goes for air defense systems.