Dalljiet Kaur made her television début in the Zee drama, Manshaa, and this was followed by appearances in CID, Aahat and Raat Hone Ko Hai.[9] In 2005, she appeared in the show Kumkum – Ek Pyara Sa Bandhan where she played Siya followed by a cameo in Kaisa Ye Pyar Hai. Her first role as a protagonist in a drama was in Kulvaddhu as Niyati, a young girl from a royal Jodhpur family. Following the abrupt ending of Kulvaddhu, Daljeet went on to play Shikha in Chhoona Hai Aasmaan. She also appeared in Star Plus show Santaan from 2007 to 2009.
In 2008, she participated in the dance reality show Nach Baliye in the fourth season and became the winner with ex husband Shaleen Bhanot. In 2011 she played Anjali in Star Plus' show Iss Pyaar Ko Kya Naam Doon?.
Kaur made her comeback to television with Colors TV's Swaragini - Jodein Rishton Ke Sur where she played Janki. She later did an episodic appearance in Life OK's Savdhaan India. From 2015 to 2017, she played one of the leads in Zee TV's Kaala Teeka. In 2017, she portrayed Aadishakti in Maa Shakti. In 2018, she played one of the supporting leads in Star Plus show Qayamat Ki Raat. She later appeared in Silsila Badalte Rishton Ka and Vikram Betaal Ki Rahasya Gatha
Kaur was a celebrity contestant in the thirteenth season of the Indian version of the reality TV show Big Brother, Bigg Boss.