Two unknown men lobbed grenade at Nirankari Bhawan in Amritsar today. The blast claimed at least three lives and injured around 20 people. Punjab chief minister Amarinder Singh and Union home minister Rajnath Singh assured strong action after three people were killed and around 15 injured in a grenade blast at a Nirankari prayer meeting in Amritsar’s Adliwal village, which appeared to be a “terrorist act”. Two armed bike-borne youths wearing turban and having their faces covered forced their way into a building where the Nirankari spiritual group was meeting in the village near Rajasansi area and threw a hand grenade at the crowd.