In 2012, Bajpai appeared in Vikram Bhatt's next horror thriller 1920: The Evil Returns, sequel to the 2008 film 1920, alongside Aftab Shivdasani. She portrayed the role of Smriti, a girl who is possessed by an evil spirit. The film garnered average reviews from critics, but turned out to be commercially successful.[10]
In 2020, Bajpai released her first international solo album "Upgrade". The music videos for the album were released on YouTube. The song called "Bon Appetit" from the album was released on 23 May and features India's first 3D animation video. She was credited as Tia B on her album.[11]