Movies:
* A Wednesday (2008): This critically acclaimed film saw Simple Kaul play a police officer alongside Naseeruddin Shah. The movie is considered one of the best thriller films in Indian cinema.
* The Shaukeens (2014): He starred alongside Anupam Kher, Annu Kapoor, and Piyush Mishra in this comedy film.
* Pyaar Ka Punchnama 2 (2015): He played a supporting role in this successful romantic comedy film.
* Baa Baa Black Sheep (2018): He starred as a police officer in this comedy film.
* Zindagi in Short (2020): An anthology film with multiple short stories, Simple Kaul played a significant role in one of them.
Television:
* Powder (2006): This was one of his earliest television projects, a crime drama series.
* Sadda Haq (2014-2016): He played the role of Randhir in this popular youth drama series.
* Ek Duje Ke Vaaste (2016): This was another popular youth drama series where he played the character of Siddharth.
* Dil Hi Toh Hai (2018-2020): He starred as a lead character in this romantic drama series.
Other notable projects:
* He has also appeared in web series like "The Test Case" and "The Gone Game."
* Simple Kaul is also a theatre artist.
This list is not exhaustive, and he has been involved in many other projects throughout his career. He continues to be an active and respected figure in the Indian entertainment industry.