Dineshchandra Sen publishes Maimansingha Gitika, a massive collection of Bengali folk ballads from Mymensingh region (now Bangladesh), transcribed from kavigan (poet-singers) oral performances. These long narratives blend Hindu-Buddhist mythology, local spirit beliefs, and Muslim-influenced folklore, preserving regional dialects, boatman songs, agricultural magic, and women's ritual laments. The collection resists British erasure of village culture.

The Maimansingha ballads profoundly influenced Bengali poet Jibanananda Das's 'Banalata Sen' pastoral imagery and later Bangladesh liberation poets (Shamsur Rahman, Al Mahmud) who weaponized folk forms against Pakistani military rule. The collection's folk 'Mymensingh meter' and tragic-heroine narratives provided raw material for postcolonial Bengali poetry's construction of a rural-vernacular identity distinct from Kolkata-based literary traditions. It demonstrates how colonial-era folk collection generates national poetries in partitioned linguistic regions.