"In his stupor, according to his friends, he became violent, lost control and started banging his forehead on a stone slab in the balcony when his friends tried to restrain him. A forensic investigation is underway to ascertain the veracity of this claim," the officer added.
This, the police said they were told by Sarna's friends, occurred between 11.45pm and midnight and led them to call his father over the phone around 12.05am.
The phone call was followed by another one with one of his friends telling Sarna's father Anil that he had fallen sick and had been taken to the AIIMS.
"His friends called me to meet them there but instead of waiting, they just left him there to die. My son was killed," he said.