India, May 26 -- A 36-year-old man was arrested in Uttar Pradesh on Saturday for allegedly killing a labourer and critically injuring the latter's wife with a hammer at their house in Katwaria Sarai in southwest Delhi on May 21, police said on Sunday.

The accused was identified as Akhilesh Kumar. The victims, Ashok Kumar (45) and his wife M Devi (40), worked as daily wage labourers at Indian Institute of Technology, Delhi, said additional deputy commissioner of police (southwest) Aishwarya Singh.

"The accused told us he had developed a close platonic relationship with the wife of the deceased. The deceased warned him several times over the past month to keep his distance. On Saturday, when Akhilesh arrived at the married couple's house,...