http://www.thehindubusinessline.com/opinion/columns/article2863252.ece?homepage=true
The Indian military has bankrolled British military industries pretty significantly over the past 65 years. Off the top of my head, it was the largest buyer of several British warplanes-the Canberra, Folland Gnat, Hawker Sea Hawk, Hawker Hunter, Jaguar, Sea Harrier and BAe Hawk in addition to plenty of frigates, destroyers and two aircraft carriers as well as tanks.
To be honest, Indian investment has been the only kind of investment that has been steadily increasing in UK and has been creating jobs. Indian investments in UK is secondly only to US. For the entirety of last century Indian blood and sweat had kept the British economy/military afloat. There is only so much Indian money can do to keep a thankless and arrogant Britain economically alive. After that they have to start begging or declare bankruptcy like the Europeans.