Started by Rajkalyan Roy in year 1991-1992 with the inspiration of his father Dilip Roy a renowned name in Music Direction, Arrangement and Violinist. The company operation not only serves the music thirst of the mass but also help the upcoming singer and musician professionally over the years. Celebrity like Kumar Sanu, Usha Uthup, Abhijeet, Babul Supriya as well as senior Rabindra Sangeet exponent like Suchitra Mitra, Kanika Bandopadhyay and Dwijen Mukhopadhyay have recorded their voice under the label UD Series.