Rajesh Singh was born in 15th September, 1975 at Hazaribagh, Jharkhand. Rajesh Singh has a very strong and robust body structure. He is very tall and heavy weighted Man. Rajesh belongs to a middle class family. He is very curious and hardworking child. He is a skilled guy. He knows horse riding as well as swimming. He is also a brilliant dancer. He had a desire of acting from his childhood, but that was not completed due to some reasons. Rajesh wanted to become an actor to fulfill his father's dream. Rajesh completed his acting course from the Asha Chandra Institute in Jharkhand. Rajesh Singh is a spiritual guy.

He believes in worshipping. He loves reading. He read all types of books in his life. Rajesh Singh also worked in many serials, movies and plays. He did 15 plays in Prithvi Theatre, located in (Juhu). He also did 70-80 shows in Ravindra Natya Mandir (Dadar) and Dina Nath Mangeshkar (Vile Parle). He did 6 TV serials. He was famous for his role " Sabu" in Chacha Choudhary. He played the character of "Ravana" in "Brahma Vishnu Mahesh". He also worked in serial " Jai Hanuman" as "Bhim". Rajesh Singh was a versatile Actor. He did total 3 films in his career. He filmed in the Bhojpuri film "Egg Chumme Deyi De".

He worked with the star cast of Manoj Tiwari and Ravikishen in this movie. This movie was released in 2008. Rajesh also filmed in the film "Zamanat" as a guest appearance. He acted as villain in the latest movie " Teen Patti" with Amitabh Bachchan. Rajesh Singh was motivated by the autobiography of the Swami Vivekananda. Rajesh worked in 7 plays those are world famous. Rajesh Singh also filmed in the many advertisements like KitKat and BrookBond Tea. He always said in his interviews "He is comfortable in all types of roles like comedy and emotional”.