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Like most grandfathers, Big B is also full of wisdom, great life advice and inspiring words that he wants to share with his grandchildren.

Perhaps it was his upcoming movie Pink, a social thriller reflecting on gender disparity that motivated him to pen an open letter to his granddaughters, Navya Naveli, 18, and Aaradhya, 4, about the struggles of being a woman and the boxes the world tries to place you in.

Here's the letter that the 73-year-old actor wrote:

"My very dearest Navya & Aaradhya,

You both carry a very valuable legacy on your tender shoulders – Aaradhya, the legacy of your great grandfather, Dr Harivansh Rai Bachchan and Navya, the legacy of your great grandfather, Shri H P Nanda.

Both your great grandfathers gave your present surnames celebrated fame, dignity and recognition!

Both of you maybe a Nanda or a Bachchan, but you are also girls, women! And because you are women, people will force their thinking, their boundaries on you.

They will tell you how to dress, how to behave, who you can meet and where you can go.

Don’t live in the shadows of their judgement. Make your own choices in the light of your own wisdom. Don’t let anyone make you believe that the length of your skirt is a measure of your character.

Don’t let anyone’s opinion of who you should be friends with, dictate who you will be friends with. Don’t get married for any other reason other than you want to get married.

People will talk. They shall say some terrible things. But that doesn’t mean you have to listen to everyone. Never ever worry about – log kya kahenge.

At the end of the day, you are the only one who will face the consequences of your actions, so don’t let other people make your decisions for you.

Navya – the privilege your name, your surname offers you, will not protect you from the difficulties you will face because you’re a woman.

Aaradhya – by the time you see and understand this, I may well not be around. But I think what I am saying today shall still be relevant.

This may be a difficult, difficult world to be a woman. But I believe that it is women like you that will change that.

It may not be easy, setting your own boundaries, making your own choices, rising above people’s judgement. But you, you can set an example for women everywhere.

Do this and you would have done more than I have ever done and it will be my honor to be known not as Amitabh Bachchan but as your grandfather!

With all my love

Your Dadaji, your Nana."

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