Mirza Mohtashim Beg was born in Sawai Madhopur of Jaipur state in 1928. He moved to Pakistan in 1950, where he worked in various government departments. He remained associated with Hurriyat daily of Karachi. He was the disciple of Beenish Saleemi. He was awarded with the President Award of the Government of Pakistan for his literary services in 2001. He used the pen name, Rasa. Rekhta, Zanjeer-E-Hamsaygi, Tasneef, Chashma Thandey Pani Ka and Tere Aane Ka Intezar Raha are collections of his works.