With which country did India hold the first Anti-terrorism military exercise 'hand-in-hand' in 2007?

The 'Hand-in-Hand' bilateral military exercise between India and China began in 2007, making China the correct answer. This annual exercise focuses on counter-terrorism and peacekeeping operations, alternating between locations in both countries. The exercise was significant as it marked a new phase in military cooperation between the two Asian giants despite their complex bilateral relationship. India conducts similar exercises with other nations like Russia (Indra) and USA (Yudh Abhyas), but the Hand-in-Hand series specifically involves China.