In the map, south to Bangladesh, Sagornooper, to the north Pragjyotish and the Eastern plain beside hills was known as ‘Kiratas.’ The then Red River (Brammhaputra of today) borne alluvial soil contributed the formation of ‘Kiratas’ and Comilla was under it.

That is Chandpur was under ‘Kiratas.’ In the map of Tomas Water, a land named ‘Srikhetra’ was shown to the south of the combined course of both the Titas and Gomati (probably).

It is guessed that Chandpur and the west part of Noakhali were under ‘Srikhetra.’ In the map of Jean de Brosse in 1560, ‘Tropo’ was shown by river banks.

In the map of Portuguese sailor Sanson de Abevil in 1652, Bander, a place was marked where there was a big river port.

In 1779, English surveyor Major James Rennel drew a map where not only Tripura, but also Chandpur and Comilla were rightly spotted.

Chandpur District had a literacy rate (age 7 and over) of 78.23%, compared to the national average of 74.80%, and a sex ratio of 1144 females per 1000 males.