Directed by R Balki, the movie is based on the life of Arunachalam Muruganantham, who invented the first low-cost sanitary napkins in India.
"Such a pleasure working with the indomitable Akshay Kumar. He was the perfect person to play the role of 'Padman' and has brought a sense of humour and love to the film," Sonam wrote, unveiling her first look from the film.
"Of course, none of these would have been possible without the humble visionary R Balki," she added.
The movie also features actor Radhika Apte, who plays Akshay's onscreen wife.
The National Award-winning actor also shared Radhika's look from the film and tweeted, "The REASON he became #PADMAN..."
The movie is scheduled to release on January 26.
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