At least 20 people, including a policeman, were injured as suspected militants triggered an explosion on Monday evening in Dudhnoi in western Assam's Goalpara district, police said.
Superintendent of Police Nitul Gogoi confirmed that a policeman was injured in the blast along with civilians.
The blast site is close to the Dudhnoi police station, police said, adding that they were yet to ascertain the exact nature of the explosives.