Dr Krishna Prasath R, a junior resident in the Department of Radio diagnosis and Imaging, PGIMER, hailed from Tamil Nadu.
"Prasath was found hanging from the ceiling of his room. He used a rope to commit suicide," Station House Officer at Sector 11 Police Station, Inspector Lakhbir Singh, said, adding the reason behind the extreme step was not known.
A case has been registered, Singh said, adding further investigations were under progress.