Sujan Ganguly 1 The rain had just begun to tap lightly against the wrought-iron balconies of Ballygunge’s aging colonial mansions when Ayesha Dutta was last seen. It was a quiet Wednesday afternoon in late July, and the streets of the upscale South Kolkata neighborhood glistened with monsoon stillness. Ayesha, seventeen and self-possessed beyond her years, had told her mother she was going to visit a friend to discuss a school literary project. Instead, she walked into the ivy-covered gates of Ananda Apartments — a five-story heritage building, once home to freedom fighters and now to retired bureaucrats, eccentric artists, and…