New Delhi, Apr 12 (PTI) A day after a BJP worker was murdered allegedly by his party men, a 25-year-old Shiv Sena candidate for Delhi municipal polls was today stabbed by unidentified assailants but police claimed that it appeared to be a case of personal rivalry not linked with elections. Sunil Kumar, contesting from Rohini ward in Outer Delhi, was on his way to a barber shop when he was attacked in Rohini at around 10:30 AM and he suffered "superficial" injuries in the incident, a senior police official said. This is the second violent incident involving MCD candidates in the past three days. BJP candidate Madhav Prasad was arrested along with two others for allegedly stabbing to death a party worker with whom they had differences. According to police, Kumar told investigators that four men accosted him while he was on his way to have a hair-cut. "Two of them caught hold of him while two others stabbed him. They fled after the incident. He could not identify his attackers," the official said quoting Kumar. He suffered a stab injury on his back and was rushed to Ambedkar hospital for treatment. No arrest has been made so far. Kumar has a case of culpable homicide not amounting to murder registered against him in 2007 in Sultanpuri police station. The case is pending before Additional Session Judge's court in Rohini, according to the affidavit submitted by him while filing nominations for the MCD polls.