There is a prosperous heritage of literature in Sylheti Nagri script that dates back to around 200 years. The script of Sylheti language comprises five independent vowels, five dependent vowels associated with a consonant and 27 consonants. The alphabets in Sylheti Nagri script differs from Bengali alphabet. In Bangladesh, during the 1971 Liberation War, writing structure came to a stop. Efforts for establishing Sylheti language as a modern language were strongly opposed in Bangladesh by political and cultural forces. However, campaigns began in order to recognize Sylheti language as an independent language.
Sylheti language is distinguished by huge range of fricative sounds. These fricative sounds of Sylheti language match up with the aspirated stops in some closely connected languages like Bengali language. This language is also distinguished by the deficient in breathy voiced stops, which are generally common in other Indian languages, amount of stress given on words, and also by a moderately large set of borrowed words from Arabic language, Hindi language, Persian, Bengali language and Assamese language. Sylheti language is presently considered as an independent language and not a dialect of Bengali and Assamese languages. There are a huge number of speakers of Sylheti Language across the globe.