Pervez and his wife had been married for four years but they had recently fallen apart, said a senior police officer.
In order to sort out their differences, the woman's family and friends visited Pervez's house to have a conversation last night, he said.
However, a fight ensued between the two families in which Pervez and his father allegedly stabbed four persons from the woman's side last night, he said.
A PCR call was made by a neighbour following cries from Pervez's house, he added.
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The other three, Amruddin, Ghaffar and Subrati Khan are undergoing treatment at the hospital.
Police are probing whether there were more persons involved in the stabbing incident. They are awaiting the three injured persons to recover to piece the entire sequence of events.
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