The police probe into allegations of sexual harassment at a prominent educational and spiritual institution in New Delhi has widened, with disturbing new details surfacing against Swami Chaitanyananda Saraswati.

A 38-year-old man undergoing treatment for “mental health issues” was murdered at a private de-addiction and rehabilitation centre here allegedly by two inmates following a quarrel over a minor issue, police said on Thursday.

Lieutenant Colonel Prasad Shrikant Purohit — acquitted in 2008 Malegaon blast case — has been promoted to the post of Colonel after years of legal battle.