Varma, who has directed Aamir in "Rangeela", took to Twitter to rant about how other superstars in the country don't look beyond wanting to look forever young in films.
He praised Aamir, in a series of tweets, for not hesitating to play a father of two grown up daughters in the sports drama which is based on the life of Mahavir Singh Phogat and his wrestler daughters.
"Just saw Dangal and zapped with Aamir's belief in Indian audience's intelligence that they can make such a niche idea into such a massive film.
The director said he is impressed to see how Aamir does not think the audience to be dumb and respects their intelligence.
"Want to touch Aamir's feet for his ever growing sincerity which was always there but it impossibly seems to be growing taller and taller... Other Khan's presuppose the audience to be dumb which I too think they are but Aamir respects and caters to their intelligence hidden behind," he tweeted.
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