"He told me to put the call on recording, said it could be used as police evidence; (then) told me he was killing her. Kajal, posted with the Special Cell of Delhi Police, was at her residence in Mohan Garden when the attack took place. Her husband, Ankur, a clerk in the Ministry of Defence and posted in Delhi Cantt, was arrested hours later. Nikhil, a constable posted at Parliament Street Police Station, told PTI that the sequence began with a call from Ankur. I am killing your sister.