Taneja is best known for his portrayal as Samar Surana in Main Maike Chali Jaungi Tum Dekhte Rahiyo and Lakshya Maheshwari in Swaragini - Jodein Rishton Ke Sur.

At age 19, Taneja marked his acting career debut in 2013 with Sony Entertainment family drama Ekk Nayi Pehchaan as Chirag Modi.

In 2018–2019, Taneja personified his career’s one of the most loved characters as Samar Surana in a romantic comedy show Main Maayke Chali Jaungi, which was created by Ved Raj and directed by Dheeraj Sarna.

Later, he took a break from the small screen for a year and then made a television comeback as Advocate Aashish Tiwari in a Zee TV’s drama Maitree in 2023 for which he was assessed by his lawyer friend to help get into the skin of the character better, later taking an exit from the show owed to creative differences.

Taneja’s name has been romantically linked to numerous of his co-actresses which includes his close friends Tejasswi Prakash and Kanchi Singh but negating all these rumours, in 2017, he announced his relationship with his longtime-girlfriend Aanchal Sharma.