<p>A person was killed and four others of a family were seriously injured after a bomb exploded in their house Sunday in West Bengal's Hooghly district, police said.<br /><br /></p>.<p>"One person was killed and four others were hospitalised with serious injuries after a bomb went off inside their house," an officer of Rishra police station said.<br /><br />The blast occurred Sunday morning in Rishra, some 23 km from Kolkata. The family which returned from Gaya in Bihar in the morning, opened a bag after which the bomb kept inside it, exploded.<br /><br />"The bomb squad is inspecting the site and we are probing the matter," added the officer.<br />Family members have alleged that the bag was exchanged in the train during their way back from Gaya in Bihar.</p>
<p>A person was killed and four others of a family were seriously injured after a bomb exploded in their house Sunday in West Bengal's Hooghly district, police said.<br /><br /></p>.<p>"One person was killed and four others were hospitalised with serious injuries after a bomb went off inside their house," an officer of Rishra police station said.<br /><br />The blast occurred Sunday morning in Rishra, some 23 km from Kolkata. The family which returned from Gaya in Bihar in the morning, opened a bag after which the bomb kept inside it, exploded.<br /><br />"The bomb squad is inspecting the site and we are probing the matter," added the officer.<br />Family members have alleged that the bag was exchanged in the train during their way back from Gaya in Bihar.</p>