The Malad East police arrested a man for killing his colleague by pushing him four floors down to an empty lift duct following a minor argument. The man identified as Abhichandra Yadav, 28, who works as a labourer, had a minor argument with Abhishek Chauhan (28) after which he pushed him his death, The Times of India, reported.

The incident happened on Friday when Yadav was seated near the staircase on the fourth floor of the unlit building and Chauhan was climbing the stairs using the torchlight from his mobile phone.