A man succumbed to injuries he sustained in an attack by an unidentified gang in the Capital. The gang had beat the 45-year-old Tirtha Bahadur Maharjan black and blue in Patan on January 25. He was admitted to the Bir Hospital for treatment, which on Sunday referred the case to the Tripureshwor-based Blue Cross Hospital, police said. But, Maharjan breathed his last while undergoing treatment on Monday morning. A permanent resident of Dallu, KMC-15, Maharjan was currently staying in Kalanki. While looking for the attackers, police are investigating into the case.