Along with the tweet, he posted a photograph from his movie. He, along with his co-star Radhika Apte among others, are seen holding sanitary pads. Take a look at his post below:
Radhika also wrote: "Happy Menstrual Hygiene Day."
"PadMan", directed by R. Balki, is based on Arunachalam Muruganantham, who created a revolution in the field of affordable menstrual hygiene. Arunachalam's fight against menstrual taboo was even narrated in Twinkle Khanna's book "The Legend of Lakshmi Prasad".