Vidya Balan always begins the new year with a bang. Her birthday is on January 1. The actress celebrated her big day, like always, with her near and dear ones. All pictures/Yogen Shah

As it is a landmark year, we can safely assume the 40-year-old will be party-hearty. She loves hosting theme-based bashes.

In picture: Vidya Balan with her family.

Last year, she had a retro night. The bash was organised at her office in Bandra, Mumbai. The themed party was attended by her family and close friends including her parents, husband Sidharth Roy Kapur, Aditya Roy Kapur and Manav Kaul.

In picture: Kunal Roy Kapur was also snapped by the paparazzi at the bash.

For her 39th, it was a mad hatters ball, where guests were asked to don elaborate headgears. Vidya Balan is known to celebrate her special day with her close friends and family.

Speaking of her professional journey, Vidya Balan will be next seen in Shakuntala Devi. She essays the title role of the late mathematics genius Shakuntala Devi in the film. The film, which also stars Sanya Malhotra as Vidya Balan's on-screen daughter, will hit theatres in summer 2020.

In picture: Aditya Roy Kapur arrived at the party.

On the occasion of World Mathematics Day, Vidya Balan shared a motion poster from her film. The film based on the life of a mathematical genius is directed by Anu Menon and produced by Sony Pictures Network Productions and Vikram Malhotra.

Vidya Balan was last seen playing the role of an ISRO scientist Tara Shinde in hit film Mission Mangal. She shared screen space with Akshay Kumar, Taapsee Pannu and Sonakshi Sinha.