The Crime Branch will soon file a 1,800-page charge sheet in the death of Dr Payal Tadvi and the biggest weapon in their arsenal is her three-page suicide note, said a senior officer. The note, the physical copy of which has not been found, was retrieved from Dr Tadvi's phone and details the harassment by the three seniors — Dr Hema Ahuja, Dr Bhakti Mehare and Dr Ankita Khandelwal.

Dr Tadvi committed suicide on May 22 and the trio of seniors — who have been named in the note — were arrested by the Agripada police station on May 28 for allegedly abetting her suicide by torturing her over her caste. All the three accused are in judicial custody.