A man in India has stabbed 14 members of his own family to death, including seven children, before hanging himself, in one of the country's worst massacres in recent years.

Hasnin Warekar, 35, killed his parents and several of his sisters and their children at the family home in the early hours of Sunday in the city of Thane, north of Mumbai, police spokesman Gajanan Kabdule said.

One of Warekar's sisters survived the attack, and is being treated for her injuries in hospital.

"He used a big knife. He killed his parents, his sisters and his sisters' children. He slit their throats," Kabdule told Reuters.

Advertisement

Police are investigating the possibility that a property dispute lay behind the massacre, although a motive is yet to be established, he said.

Local media reported that Warekar had laced his family's food with a sedative before slaughtering them, but Kabdule said this was unconfirmed as samples taken from the house were still being analysed.

Where to get help:

Lifeline: 0800 543 354 (available 24/7)
Suicide Crisis Helpline: 0508 828 865 (0508 TAUTOKO) (available 24/7)
Youth services: (06) 3555 906 (Palmerston North and Levin)
Youthline: 0800 376 633
Kidsline: 0800 543 754 (available 24/7)
Whatsup: 0800 942 8787 (1pm to 11pm)
Depression helpline: 0800 111 757 (available 24/7)
Samaritans: 0800 726 666 (available 24/7)
If it is an emergency and you feel like you or someone else is at risk, call 111.

-AAP