Singh began his career in 2001 with
Times Group as an entertainment journalist and wrote columns and articles for both
Bombay Times and
Navbharat Times. During this time The Times Group started their own radio channel
Radio Mirchi and Sandeep got his first opportunity to be a show producer. He was later appointed as the entertainment head at Radio Mirchi. He joined
Radio City in 2005 as entertainment head and launched several shows. He moved into
BIG FM as national entertainment head in 2007. He produced his first independent show
Dancing Queen in 2008 on Colors Channel with SOL Entertainment. Whilst at Bhansali Productions he co-produced films
Rowdy Rathore,
Shirin Farhad Ki Toh Nikal Padi,
Ram Leela,
Mary Kom and a television series on Star Plus called
Saraswatichandra (2013). In 2015, he launched himself as an independent producer with the critically acclaimed film
Aligarh,
Sarbjit in 2016,
Bhoomi in 2017, the biographical film
PM Narendra Modi in 2019 and
Jhund. He acquired the rights to the biography of business tycoon
Subrata Roy in July 2021. The same year, he also announced three films with a biography film titled
Swatantra Veer Savarkar on the life of
Vinayak Damodar Savarkar. In addition, he is producing a women-centric film titled
White directed by
Mahesh Manjrekar who is also directing a film on
Nathuram Godse titled as
Godse, He had also announced a film titled
Bal Shivaji directed by
Ravi Jadhav, Sandeep made his directorial debut{{Cite web|title= Sandeep Singh to make his directorial debut with 'Safed'; first look of the film to be unveiled at Cannes Film Festival == Filmography ==