Pune locals call it Camp -- the broad, tree-lined grid of streets east of the river that the British laid out as a military cantonment in 1817 after the Battle of Khadki. Wide avenues, low colonial bungalows, the old Main Street (now MG Road) full of shops and restaurants.
Camp still feels different from the rest of Pune: more spacious, more colonial in flavour, and home to many of the city's Parsi, Anglo-Indian, and Muslim communities. The military still occupies large parts; you can walk around the public areas but parts of the cantonment proper are off-limits. East Street, Pasta Street, and MG Road are the main commercial spines.