Image credits- Indian Navy Source- The Diplomat Author- Pushan Das Last week, India’s first conventional submarine in over a decade and a half —the INS Kalvari—finally began sea trials, amid reports of Indo-U.S. cooperation in tracking Chinese submarine activity in the region. As sightings of Chinese submarines become more frequent in the Indian Ocean region, the Indian Navy is looking at innovative ways to gain an edge in anti-submarine warfare (ASW) capabilities. Can the Indian Navy effectively counter a modern Chinese submarine force, which is primarily optimized for regional anti-surface warfare missions near major sea lines of communication in the Indian Ocean? India’s expenditure on defense acquisition has remained largely static in real terms in recent years, resulting in constraints on not just the navy but the armed forces in general. The defense outlay for fiscal year 2016/17 was INR 2.49 trillion (USD 36.63 billion), but according to IHS Jane’s 360, th