A 35-year-old man was suspected of murdering 14 family members before hanging himself early Sunday outside Mumbai, police said.
Officers found the body of Hasnain Warekar hanging with a blood-stained knife nearby and the bodies of his wife, parents, three sisters and eight children of the extended family, all with their throats slit, at Warekar's residence in the suburb of Thane, senior police official Ashutosh Dumbre said.
Another sister Subia Bharwar, 22, survived the attack and was being treated in a local hospital.
It appears there was a family get-together after which Warekar’s sisters and children had stayed over.
“Prima facie evidence suggests the accused bolted all the doors of the house and murdered them with the knife that was found beside him. The accused appears to have hung himself after killing his family,” Dumbre said.
Warekar's motive was not clear, he said.
Bharwar had shouted for help when she was attacked and other relatives sleeping next door called police and broke a window to get in.
Warekar worked as a chartered accountant with a private company.
Neighbours quoted by NDTV news channel said the young man was quiet and polite and there did not seem to be any problems in the family.