A 31-year-old woman died of injuries sustained in a fight with her husband in their rented flat in Baranagar's Fakir Ghosh Lane on Tuesday, police said.
Reshmi Kapur's husband Bikash and 14-year-old daughter are admitted to RG Kar hospital with stab injuries.
A doctor said both suffered spinal chord injuries and had to be operated on.
An officer of Baranagar police station said the daughter woke up to find her parents fighting with a kitchen knife.
"She suffered stab wounds trying to stop them," he said.
Neighbours of the Kapurs came running to the flat when the daughter raised the alarm. "Around 5am we heard her screaming for help," Kanan Roy who lives in the same building said.
"We asked her to open the main door. On entering the flat we saw Reshmi lying in a pool of blood in a bedroom and Bikash sitting in another with deep cuts on the thigh and neck," Roy said.
Another neighbour claimed they had seen a knife splattered with blood lying beside Bikash.
"We have seized the kitchen knife from the flat. The body has been sent for post-mortem to ascertain the cause of death," Dhrubajyoti Dey, additional police superintendent, Barrackpore commissionerate, said.
The police will speak to Bikash once he recovers to find the missing dots, another officer of Baranagar police station said.
Bikash had a tailoring business in the Belilious Road area in Howrah. They shifted to the Baranagar flat a year ago after his business suffered losses, the police said.
"My sister would often visit our house. They were going through some financial trouble but we never imagined something like this could happen," Reshmi's brother Ramesh Khhetri, who lives close by on Matrimandir Lane, said.
Club clashBombs were hurled during a clash between members of two clubs at the Ekbalpore Lane-Bhukailash Road crossing on Tuesday.
Police said the clash was a fallout of a long-standing rivalry. There has been no arrests so far.