New Delhi: A 20-year-old man was killed allegedly by his friend to "take revenge" for being beaten up by him three years ago over monetary dispute in south Delhi's Sangam Vihar, police said on Friday. The deceased was identified as Sanoj, a resident of Sangam Vihar, they said.

Investigations revealed that Akash (22) was beaten up by Sanoj three years ago when he asked him to return Rs 1,000 that he had borrowed, police said. Both of them did not approach police then and the matter was settled after Akash received monetary help for his treatment. Both of them were addicted to drugs and have previous criminal involvements, a senior police officer said.