The story spins around the old couple's trouble due to the family's behavior and intensifies, when son and daughter-in-law celebrate their marriage anniversary in a grand way but their 46th marriage anniversary celebration is planned to be just a small get-together. Their relationship is hampered due to authoritative attitude and over possessiveness of son. Tonic tells us the story of 75 yrs old retired Jaladhar Sen who lives with his wife, son, daughter-in-law and granddaughter. At the 5th Filmfare Awards Bangla, the film received a leading six nominations and won three, including Best Film, Best Actor (Bandopadhyay) and Best Debut Director (Sen). The chemistry between Dev and Paran Bandopadhyay won appraisals, besides the other elements. Upon its premiere on 2 December 2021, Tonic opened to positive critical reviews and became a good commercial success, eventually emerging as the highest-grossing Bengali film of 2021.

It was jointly distributed by Bengal Talkies and Dev Entertainment Ventures.

The film's cinematography was handled by Supriyo Dutta, while Sujay Datta Ray edited it. Besides directing, he wrote the story, which he completed by a year, taking cues from his own life. Tonic marked the directorial debut of Avijit Sen, who had previously worked as an assistant director to Rajkumar Hirani. The film revolves around an elderly couple, portrayed by Paran Bandopadhyay and Shakuntala Barua, who get to enjoy a fresh lease of life through their tourist guide Tonic ( Dev). Tonic is a 2021 Indian Bengali-language family drama film directed by Avijit Sen in his directorial debut, produced by Atanu Raychaudhuri and distributed by Bengal Talkies.

Tonic bengali movie download hd