A powerful bomb was found in Kamakhya-Puri Express on Friday. Meanwhile, a five kg Improvised Explosives Device (IED) was found at Pancharatna Railway station in the wee hours of Friday.
The house owner, Dholaram Rabha, has been arrested. He is suspected to be a militant of either local extremist groups Rabha Viper Army or the Garo National Liberation Army.
The intelligence bureau has already alerted Jammu Kashmir and the North-East states as terror attacks might bruise the region ahead of the Independence Day.
Meanwhile, the anti Ulfa-government talk terror outfit boycotted the Independence Day celebration and called a strike on Aug 15.