Militants of the United Liberation Front of Asom triggered blasts at Pakhorijam in Assam's Tinsukia district on Wednesday morning.
However, there has been no reports of casuality.
The army and police have rushed to the spot and have launched operations in the other parts of the state.
On Tuesday, in blasts at Bonaigaon and Adabari areas, two people were feared dead and 17 injured.