The leader of the Baro-Bhuiyan zamindars, Isa Khan, had his first and temporary capital situated in Sarail.

There are unknown tombs located near the mosque, supposedly belonging to the wives of Isa Khan.

During the Bangladesh Liberation War of 1971, the Pakistani Army killed about 70 innocent people in the Bitghar area.

A number of Pakistani Army officers and the chairman of the Sarail Peace Committee were also killed.

Sarail had a literacy rate (age 7 and over) of 40.85%, compared to the national average of 51.8%, and a sex ratio of 1068 females per 1000 males.