A 25-year-old youth's wrist was severed by rivals in a revenge attack at Khagdi area of Madaripur Sadar Upazila on Saturday.
The victim is Biplab Mridha alias Billu, a resident of Charmugaria area of the upazila.
Family members said Akash Khan, 23, son of local Khabir Khan, called Billu out of his home to the college ground around 11am on Saturday. Later, Akash along with his men slit his wrists, they claimed.
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Billu was admitted to Madaripur Sadar Hospital first and then sent to Dhaka for better treatment.
A few days ago, Billu and Akash locked into a clash over establishing supremacy. At that time, Akash was seriously injured.
Md Salauddin Ahmed, officer-in-charge of Madaripur Sadar Model Police Station, said that the wrists of a young man named Billu were cut off by the rivals.
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"Legal action will be taken in this regard," he added.