Indian Prime Minister Narendra Modi will address a mass rally on a visit to Britain this week, Reuters reported. India and Britain could announce deals worth 8-12 billion pounds ($12-$18 billion) during the visit, according to diplomats, with Modi keen to buy 20 more BAE Systems Hawk trainer aircraft to be made in Bengaluru. Britain is home to 1.5 million Indians, and the two nations share the English language, historical ties and an obsession with cricket. Yet Modi has, in his first 18 months in power, made a priority of courting global powers like the United States and China.