Indian coast guards had arrested 21 fishermen in 2010 when their trawlers had drifted into India as a result of a storm while fishing in the Bay of Bengal, said a senior official of the Border Guard Bangladesh.
After a 14-month trial, they were handed down three-year rigorous imprisonment and each fined Rs 51,500.
India sent back 19 fishermen, aged between 22 and 40, on Sunday as they completed their jail terms.
Two other fishermen, aged 70 and 65, died while serving jail term, BGB official Mohammad Abdullah, commander at Benapole Checkpost BGB Camp, told Bdnews24.