He is best known for Manjunath (Film) (2014), a biopic based on the true story of Manjunath Shanmugam, the IIML graduate and Indian Oil sales officer who was killed by the mafia for exposing corruption in the oil sector.

[8] In his recent works, he has written and directed the web series 'Us and them' released on December 1, 2023 as Ishqiyapa [9] on Amazon Mini TV [10] with JAR pictures, starring Paramvir Singh Cheema, Nunui Rualhleng, Mukesh Tiwari, Vinay Pathak, Sushmita Mukherjee playing pivotal roles in the series.

In 2016, Sandeep wrote and directed The Virgins, a short film with Pia Bajpai, Divyendu Sharma and Akshay Oberoi.

In 2017, Sandeep along with Rajesh Butta started Filmboard, a disruptive omni-channel, B2B marketplace for any film production services.

[17] Varma is part of the elite academic council of SPJIMR's new program PSMEM which was launched in partnership with The Times of India Group.