In the context of her film "Tobe Tai Hok Target Fixed," Swastika Mukherjee's performance has been noted for its intensity and emotional depth. However, I couldn't find any information that specifically highlights a sex scene from this film as her "hottest."

Swastika Mukherjee is a well-known Bengali actress who has made a name for herself in the Indian film industry. She has been a part of several successful films and has worked with many prominent actors and directors.

Swastika Mukherjee's body of work showcases her acting abilities and her dedication to her craft. She continues to be a respected figure in the Bengali film industry, and her performances are appreciated by audiences and critics alike.