Noida, April 10 -- A day after a 23-year-old college student died after he entered a 20-foot-deep water-filled vacant plot in Noida Sector 94, police said on Thursday that his autopsy revealed that he had died of drowning.

"The post-mortem, conducted under the supervision of a panel, revealed that he died of asphyxia due to drowning. It further mentioned sand and mud found in the trachea (windpipe)," said Praveen Singh, assistant commissioner of police (ACP), Noida.

Police had identified the victim as Harshit Bhatt, a third-year student of Bachelor of Physical Education student at Amity University and a resident of Indirapuram, Ghaziabad.

According to the police, Bhatt had gone to the vacant plot with three friends in the afternoon on ...