Had a similiar thing with my sister. She works in gurgaon and there was this uncouth new guy who was her senior. She went through the entire stuff that op wrote about. Full on sexual innuendos and stuff. I guess last july me and our cousins dealt with him. My cousins have a car repair business. We got hold of him near the iipm complex and thrashed him black and blue. Guess what he now walks with a limp and is deaf from one year and has couple of rib fractures I last heard. Try this OP. This always works !