He has appeared in a number of Bollywood films between the 1980s and 2010s, including Tridev, Tezaab,Gupt, Mohra, Sirf Tum and Saajan, Aarzoo.

Tej's sisters, the actress Priti Sapru and the screenwriter Reema Rakesh Nath, are well-known names in Punjabi and Hindi cinema.

His wife Dhanlaxmi is a maternal half-sister of one of India's most popular actresses, Rekha.

Tezaab Sapru has acted in several daily soaps like Qubool Hai, Saat Phere – Saloni Ka Safar, Tumhari Pakhi, Yahan Main Ghar Ghar Kheli and Palampur Express.

He also played the role of Greek king Seleucus I Nicator in the Colors TV serial Chakravartin Ashoka Samrat.