A regional language is a language spoken in an area of a nation state, whether it be a small area, a federal state or province, or some wider area.

Internationally, for the purposes of the European Charter for Regional or Minority Languages, "regional or minority languages" means languages that are:

There are many cases when a regional language can claim greater numbers of speakers than certain languages which happen to be official languages of sovereign states. For example, Catalan (a regional language of Spain and France, albeit the national language of Andorra) has more speakers than Finnish or Danish. In China, Wu, spoken in southern Jiangsu, northern, and the general area of Shanghai Zhejiang by more than 90 million speakers, can claim more native speakers than French, and Cantonese, a regional language of Guangdong, Hong Kong and nearby areas in China with more than 60 million local and overseas speakers (North America, parts of Malaysia), outnumbers Italian in number of speakers. Subgroups and dialects of the Min group have over 70 million speakers, mainly in Fujian and in nearby Taiwan, but also in the Southeast Asian countries of Malaysia and Singapore.

Anupam Roy (Bengali: অনুপম রায়) is a Bengali lyricist, composer, singer and a guitarist. He is best known for his song Amake amar moto thakte dao (আমাকে আমার মত থাকতে দাও ), which appeared on the soundtrack to the 2010 film Autograph. He is also known for the songs "Ekbar Bol", "Gobhire Jao", "Tistaan" and "Beche Thakar Gaan" among others. Anupam has written and composed more than 150 Bengali songs.^{[citation needed]}

Born and brought up in Calcutta ( Ancestral Home in Berhampore, West Bengal ), Anupam completed his schooling from St. Paul's Boarding & Day School, Kidderpore(Class X) and MP Birla Foundation, Behala (Class XII). He did his graduation in Electronics and Telecommunication Engineering from Jadavpur University, Kolkata. He was the gold medalist of his batch. He used to work for Texas Instruments India, Bangalore as an analog circuit design engineer from 2004 (July) to 2011 (March).

Anupam has been writing songs from his childhood. His biggest break was having two of his songs featured in the Bengali film, Autograph (2010) by Srijit Mukherji. Anupam wrote and composed Bneche Thakaar Gaan (বেঁচে থাকার গান), sung by Rupam Islam and Amake Amar Moto Thakte Dao (আমাকে আমার মত থাকতে দাও ), which he sung himself. This song, though sung very off key, has a pathos in his voice, went on to become one of the biggest hits of recent times and fetched him numerous awards. Anupam, subsequently debuted as music director for the Bengali movie "Chalo Paltai" (2011). In the same year movies like Baishe Srabon, Rang Milanti released where he continued his work as a music director, lyricist & vocalist. The songs "Gobhire Jao", "Ekbar Bol", "Ei Shrabon", "Je Kota Din" from the film Baishe Srabon have become very popular. He recently released "Durbine Chokh Rakhbona", his first solo album which contains the hit "Tistaan" and also the original version of "Beche Thakar Gaan".