"Our government attaches top-most priority to seal the Indo-Bangla border completely to make Assam a state free from illegal immigrants," he said after a two-day visit to the Indo-Bangla border at Mankachar sector of the state.
Sonowal said all modern technology should be utilised to check illegal immigration, entry of fundamentalists, smuggling of arms, narcotics and cattle.
He travelled around 40 km along the border, including Boraibari, Seshumara and Hatichar, in Mancachar area and reviewed the ground situation there.
Sonowal said sealing of the border has been a long-cherished dream of all sections of people of Assam to insulate the state from illegal immigrants.
"We also seek cooperation from all sections of the people to fortify our international borders, including Karimganj, and create a protective shield against all cross-border movements like smuggling," he said.
The Chief Minister took a ride by a steamer on the Brahmaputra along the riverine border to get a first-hand view of the status of the border that the state shares with Bangladesh.