New Delhi, March 22 -- Delhi Police have arrested a 54-year-old woman who allegedly tried to take her own life after the suspected murder of her two daughters at their home in Malviya Nagar, officials said on Sunday.

The case relates to March 6, when the bodies of the two sisters, aged 34 and 28, were discovered in separate rooms of their ground-floor house in F-Block, Malviya Nagar. Their mother was found unconscious in another room, police said.

Officials added that the mother was arrested on Friday after undergoing medical and psychiatric assessment. She is suspected to have consumed a poisonous substance.

Police had initially suspected a murder-suicide attempt and registered a case of murder while waiting to record the woman's stat...