KARACHI- The ongoing investigation has found evidences of Lashkar-e-Jhangvi (LeJ) being involved in the Delhi Colony blast while banned Tehreek-e-Taliban Pakistan (Swat and Mohmand group) in the attack on slain inspector Shafiq Tanoli in Karachi. According to sources, the Delhi Colony blast was an incident of sectarian violence. Meanwhile, police nabbed around 43 suspects during a targeted operation in Delhi Colony and adjoining areas. On the other hand, police killed key activist of a banned outfit in an encounter in Lyari area of Karachi. According to police, the accused Qari Noshad belonged to Lashkar-e-Jhangvi. Huge cache of arms including 6 rockets, rocket launcher, 486 grenades, two pistols were also seized. A case has also been registered against 'unknown people' regarding yesterday's bomb blast in Delhi Colony of Defence area. The case was registered under anti-terrorism act on government's complaint. Meanwhile, the police have arrested 43 suspects during search operation in Delhi Colony and adjoining areas. The suspects have been shifted to undisclosed location for interrogation.