[5] In medieval times, Kamrupi was used in the Brahmaputra Valley and its adjoining areas for literary purposes in parallel with Sanskrit, both for prose and poetry.

[7] In 2018, the Kamrupi film Village Rockstars became the first from the region to be selected for India's official entry to the 91st Academy Awards.

[8] In 1996, another Kamrupi dialect film named Adajya directed by Santwana Bardoloi based on a novel by Indira Goswami titled Dontal Haatir Uiye Khuwa Haoda won the Indian National award as the Best Regional Film (Assamese) and Jury's special award.

According to Upendranath Goswami, differences between Kamrupi and east Assamese is not insignificant, they ranged over whole field of phonology, morphology and vocabulary.

In eastern variety there are no generic terms to such English words like brothers and sisters, Kamrupi do have, such as bhak and bainak.

[31] Absorption of Davaka by Kamrup marks eastward expansion of latter,[32] which ultimately covered area from the Karatoya in the west to the temple of Dikkaravasini at Sadiya in the east, Bhutan in north and Northern Bangladesh in south.

Form spoken in Eastern Assam, come to notice due to translation of Bible in 1838 by American Baptist Missions, as part of conversion process.

Suniti Kumar Chatterji divides Magadhan dialects regionwise as Radha, Varendra, Kamarupa[47] and Vanga[48][43][49] Sukumar Sen referring to ancientness of Kamrupi, wrote, "Assamese, or more appropriately the old Kamarupi dialect entered into Kamrup or western Assam, where this speech was first characterized as Assamese.

"[50] Upendranath Goswami wrote, "The Assamese language, coming from the west was first characterized in Kamrup or Western Assam whose boundary comprised in early times the whole of North-Bengal, including Cooch-Behar, Rangpur and Jalpaiguri districts of Bengal".

The writers of the Charyapada, the Mahasiddhas or Siddhacharyas, belonged to the various regions of Kamrup (Assam), Gauda (Bengal), Kalinga (Orissa) and Mithila (Bihar).

Hema Saraswati composed the "Prahlad Charitra" based on the Vamana Purana, while Haribara Vipra translated the Aswamedha Parva of the Mahabharata.

Sankara Deva who was born in 1449 A.D., refers to Madhava Kandali as one of the reputed poets belonging to an earlier age.