At least three persons were killed and over 40 have been injured in a suspected terrorist attack that took place at a convention centre in Kalamassery in Ernakulam District of Kerala on October 29, reports msn.com. Multiple explosions took place during a ‘Jehovah’s Witness’ Convention for which over 2,000 people had gathered. Meanwhile, a person from Kochi has surrendered before Kerala Police claiming responsibility for the bomb blast. Dominic Martin went to Kodakara Police Station in Thrissur District and said that he was responsible for the serial blasts. The police officials are investigating his claims.