Why is Aamir Khan proud of Priyanka and Deepika?

"Dangal", directed by Nitesh Tiwari, is based on the real-life story of ex-wrestler Mahavir Singh Phogat (played by Aamir) who was forced to give up his dream of competing in international competition due to financial constraints. But in a twist of fate, he fulfilled his ambition by training two of his four daughters into world-class wrestlers, while challenging the norms in rural India's strict patriarchal society.