The NIA Sunday announced the arrest of Ali in whose name the explosive-laden i20 involved in the blast was registered. The NIA has described Nabi as a “suicide bomber”. Wani allegedly provided technical support for carrying out terror attacks by modifying drones and attempting to make rockets ahead of the deadly car bomb blast, the NIA said in a statement. It said that Ali allegedly provided logistical support to Nabi. The remand comes a day after the NIA announced Ali’s arrest for allegedly conspiring with Nabi to execute the terror attack.