The incident took place last night in Karimnagar's Kandugula village, about 164 km from Hyderabad. According to Assistant Commissioner of Police M Ravinder Reddy, Ganta Komuraiah, 30, and Ganta Komuramma, 28, hanged themselves after Komuramma's parents accused her of practising sorcery.
Her parents had called her to their village Kondapur and scolded her for allegedly indulging in black magic and witchcraft. They also held Komuramma responsible for their ill-health, which they suspected was a result of their evil practises, the officer said.
The allegations and humiliation reportedly compelled the couple, who sold toys to make a living, to end their lives. Around 11.30 pm, Komuraiah allegedly hanged his daughters, aged nine, eight and six using a sari, police said.
Later, the couple hanged themselves in their house. Investigation is underway and the bodies have been sent for autopsy to Huzurabad Government hospital, police said.