Kousani Roy is a famous Bengali television actor and TV show host. She has acted in many Bengali telefilms and serials. Kousani has a Masters degree in Mathematics from Sripat Singh College. Kousani started her career by hosting the Rabindra Sangeet program, Amaar Je Gaan Tomar Parash Pabe. This program aired on Tara Music in 2008. She then starred in the serial Ekhane Akash Neel that aired on Star Jalsha in 2008.
Kousani joined Akash Bangla in 2008 and worked in the serial Shanai. She also hosted over 100 episodes of Ei Toh Sujog, a womens game show. She later joined Zee Bangla and worked as an anchor for the musical road show Anurodher Asor. She also hosted the game show Ajker Uma and worked as a voice-over artist for the cartoon series
and Ramayana. In 2010, Kousani joined ETV Bangla and worked on different programs on the channel. She acted in the daily serials Jakhon Ekushe Pa and Sanchari. She also hosted game shows like Rogere Ginni and 32 All Out.