Parvathi was born to P. Vinod Kumar and T.K. Usha Kumari. Her initials come from her mother's family name, Thiruvoth Kottuvata. During her schooling years, her family moved to Trivandrum, and she pursued her studies there. She finished her schooling from Kendriya Vidyalaya, Pangode. She is a trained Bharatanatyam dancer. After finishing her B.A. in English Literature from All Saints' College at Trivandrum, Kerala, she is currently pursuing her M.A. through distance education. She was a successful television anchor at Kiran TV, a full-time music channel based in Thiruvananthapuram. She was famous for her phone-in-programs.
Parvathy made her acting debut in the 2006 Malayalam film Out of Syllabus. Her second venture, Rosshan Andrrews' Notebook, won media attention. Her first leading role was in the Kannada film Milana, which became a commercial success upon release. Pairing alongside Puneet Rajkumar, the film went on to become a big commercial success, running for 450 days at a multiplex in Bangalore. Parvathy was selected to play the lead role in Sasi's Poo (2008) and featured alongside Srikanth. Her only release in 2009 was the Kannada film, Male Barali Manju Irali, directed by Vijayalakshmi Singh. Her first release in 2013, was the Kannada romantic film Andhar Bahar , the film opened to good reviews. She was next seen in the 2013 Tamil thriller film, Chennaiyil Oru Naal, she won good reviews for her small role. She was then signed to essay a leading role in Bharat Bala's romantic drama Maryan opposite Dhanush. The film released to unanimously positive reviews and successful box office collections. Her only 2014 release, Bangalore Days directed by Anjali Menon, was a high commercial success. Her upcoming movies are Virgin, Naangu Vazhi Saalai, Kappa Pappadam, Prithvi IAS.