In a suspected terror strike, 37 people were killed and over 100 injured in three blasts, including one in a mosque-cum-graveyard, where hundreds of Muslims had gathered to offer Friday prayers and remember the dead on the ocassion of Shab-e-Barat today.Curfew was imposed and paramilitary forces were deployed in this communally sensitive town immediately after the near simultaneous blasts that also rocked the busy Mushaira Chowk and Ayesha Nagar locality at around 1345 hrs.Deputy Chief Minister R R Patil, who visited the blast sites, said 37 people were killed in the three explosions.Union Home minister Shivraj Patil did not rule out the possibility of terrorist hand behind the blast. "Such incidents do not take place on their own. Someone triggers it. We all know who they are," he said in Delhi.