A man was detained here for allegedly threatening to carry out serial bomb blasts in Ahmedabad, Gujarat on Republic Day, police said on Saturday. Om Prakash Paswan, a resident of Devrar village, was taken into custody by a team of the Gujarat Police Friday night, Station House Officer of Maniyar police station Praveen Singh said.

Officials said the office of the Police Commissioner, Ahmedabad had received a letter on January 25 threatening to blow up various places in the city including a railway station and a bus stand. During probe by the Gujarat Police, it emerged that four people were involved in sending the letter, of whom one was a resident of Ballia, Uttar Pradesh, they said.