One person was killed and seven others wounded on Saturday when a bomb exploded in a busy market in Guwahati, the main city of India's troubled northeastern state of Assam, police said.
Authorities said they suspected the United Liberation Front of Asom (ULFA), a separatist militant group, to be behind the attack in the Bamunimaidum area in the eastern part of the city.
The bomb was believed to be hidden inside a three-wheeler auto-van parked in the commercial area which was packed with shoppers and traders at the time, police added.
The Bamunimaidum area was hit by a blast about six months ago, which authorities blamed on ULFA.
Police said they believed the attack by ULFA was in retaliation for recent counter attacks carried out against the group by the security forces.