Sister of Sneha Debnath, the 19-year-old student from Tripura, who was found dead in Delhi's Yamuna, said the suicide note found in her room makes no sense. "There's no clue. Why was she depressed?" Bipasha told NDTV. "If she really wanted to die...you don't have to go...to a place where 60 cameras aren't working. Someone could've manipulated her," she said.