[5] While hosting a talk show, she was noticed by Umera Ahmed who choose her as the lead of the television adaptation of her book Meri Zaat Zarra-e-Benishaan.

[6] Mumtaz played the role of an ill-fated woman in the eponymous series which aired from 2009–10 on Geo Entertainment , and earned her a nomination of Best Television Actress at the 10th Lux Style Awards.

Her antagonistic role in the biographical-romance Sadqay Tumhare as a short tempered and abusive Rasheeda earned her praise from critics and a Hum Award as well.

She then appeared in the titular role of Maryam in drama Ali Ki Ammi portraying a hard-hitting and selfless woman.

[7][8] In 2022, her performance in the mystery drama Sang-e-Mah was well-received by critics where she appeared as Zarsanga, a character loosely based on Gertrude.