Premi was born to Mr. Vishwanath and Mrs. Kanchana Vishwanath. Wife of T S Vineeth Bhatt. He is one of the famous astrologer. Vineeth Bhatt commonly known as Thirumeni among his disciples and tantric in India . She has one elder brother, Siva Prasad. Currently Premi lives with her parents and brother in Ernakulam. Her brother is a talented photographer and owns two studios in Ernakulam. Premi Vishwanath is also interested in photography like her brother. She was working for a private firm in Ernakulam before coming into the world of screens.She is well known for the portrayal of Karthu in Karuttamuthu Serial in Asianet.

Premi Viswanath is now doing a Telugu serial at Star maa TV, Karthika Deepam, released on October 16 , 2017. Premi viswanath began her career as an actress in the serial Karuthamuthu on the Asianet;Through the portrayal of a dark skinned girl in telivision,She break all conventional concepts in malayalam telivision history and Karthu become a talk in malayali households. Asianet. Viswanath is a Malayalam television actress who plays the female lead in the Karuthamuthu serial (Karthika a.k.a Karthu) which is produced by Bros Creations. This serial airs on the Asianet channel from Monday through Saturday. The serial started in 2013. Viswanath won the best female actress (new face) 2014 Asianet Film Awards night at karuthamuthu serial. And another serial moonumani its one of the popular serial on going Flowers (TV series) channel. The name of the carector ( Mayilamma ). Premi Vishwanath hosted a few television shows on Malayalam channels. Mainly flowers kuttikalavara programme it's an famous and leading show was Flowers (TV series) channel. She is a relative of actor Jayasurya.^[3] She has completed two Tamil films .

• Asianet television awards 2014 for Best debut female
• J C Foundation award 2014 Best actress