Chandan Ahirwar, the Bhopal prison guard who was tied up by 8 SIMI members

Highlights SIMI men slit throat of constable before escaping from Bhopal prison

The men tied up Chandan Ahirwar after killing constable Ramashankar Yadav

The undertrials were killed up police in an encounter hours later

He watched his colleague die after members of the banned Students Islamic Movement of India (SIMI) slit his throat with a sharpened steel plate before escaping from the Bhopal Central Prison on Sunday night.The eight men tied up Chandan Ahirwar after killing constable Ramashankar Yadav."We went on the rounds together. They kidnapped us both..." Ahirwar said to NDTV, overwhelmed by grief and barely managing a few words.Asked to describe his older colleague, Ahirwar just shook his head, unable to speak.Yadav, 58, tried to fight the SIMI members even though he was unarmed. The men threatened to do the same to Ahirwar, pointing at his body.The men tied him up and dumped him in a cell before leaving. Yadav's body was also thrown into another cell.

The undertrials then used bedsheets to climb two 30-foot walls and proceeded on foot towards a hilly region away from Bhopal. They were killed hours later.Yadav worked the night shift as the head warder of the terrorist cell in an isolated part of the prison. He was described as a doting father who was excited about the wedding of his daughter Sonia, 24, on December 9. Despite suffering a heart attack recently, he was at the forefront of preparations.