Padman (2018)

Based on the life of Tamil Nadu activist Arunachalam Muruganantham, whose aim was to provide sanitary napkins to poor women in rural areas. He would use rag cloths or leaves during periods where the use of sanitary napkins was rare. Unsatisfied with the results from his family and a medical college he approached, he decided to try it himself by making a uterus out of football bladder and filling goat's blood in it. He would roam around the whole day with the bladder, as he aimed to check the absorption rate of the sanitary napkins made by him. After years of struggle, he finally could get desired results.