Mr. Bachan's character and defining moment

When I was watching this movie, Amitabh's character felt strangely eerie. But when the movie started to show his character and I looked closely i understood why he was like that. He was over vigilante because of the Anxiety disorder. He wears a mask when he is outside, he goes for walk in the deer park daily and opens up the mask when he is beneath the tree. He stays away from people. He has emotional outbursts, it takes a lot of time for him to say things.

It is shown that he quit his service, probably because of depression and Polar disorder, he is not Confident of himself, he talks at very low volume, its hard to hear him sometimes. We see him preparing for his Wife's death when he takes the thumb impression of her in insurance papers for making himself a nominee. After that comes a dialogue which when connected with the dialogue in the end probably connects the character well and is a defining moment in the movie:

His wife sighs and says, "I wish you also had a nominee" What we witness through this dialogue is that they have no children.
then jokingly she says, " Soch Lo, I am still ready to have some just like Always"
This dialogues then shows that Amitabh either had a problem or just never wanted to have children

In the end then Amitabh says in the court: No! Means No!. Its not just a word, its a complete sentence in itself. No Matter who says this to you, NO MEANS NO..She can be your friend, GirlFriend, sex-worker, even your wife! This dialogue proves the point that Amitabh do not want any children, perhaps he did not want children because he was afraid to have them, but more than that the way he says this proves that he said no, he refused and his wife accepted and lived on with it. Because No Means No

What do you guys think? I might be wrong too, its worth discussing anyway.

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