In Assam, two persons were killed and two others injured in a grenade blast near Digboi at Tinsukia district today. Motorcycle borne miscreants lobbed a grenade in a shop at Tingrai market area. Security personnel reached the spot and injured persons were shifted to hospitals. <br />''<br />''Chief Minister Himanta Biswa Sarma condemned the incident and instructed the Director General of Police to take action against the culprits.<br />'' <br />''<span style="color: #222222;">Union Home Minister Amit Shah spoke to the Chief Minister on the blast and Mr. Sarma apprised him of the situation.</span>