Some 17 km southwest of Pune city in Khadakwasla, Maharashtra, lies the National Defence Academy (NDA), the world’s first tri-service military school where cadets aspiring for the army, navy and air force train together. Spread across 28-odd sq km, with hills in the neighbourhood, a pristine lake and an invigorating climate with a mean temperature of 24.3 degrees Celsius, it’s an idyllic campus. Watching over it from atop a hill is the Sinhagad fort, believed to be over 2,000 years old and the site of many battles. For the cadets, hikes and runs from the academy to the fort in