Additional Session Judge Pradeep Mittal awarded the sentence to Rahul Kori (23), Dharmendra Kori (26) and Ranjeet Kori (30) under Sections 302 and other relevant sections of the IPC, prosecution said.
The trio had stabbed Sonu (33) following a dispute with him over filling water on February 18 2011, the prosecution said, adding that the court has also imposed a fine of Rs 1,000 on each one of them.