Directed by James Erskine, "Sachin: A Billion Dreams" is based on the life of Tendulkar.
The biographical drama stars the 43-year-old master blaster and will chronicle his journey while revealing a few aspects of his life which have never been heard of or seen before.
The Oscar-winning composer says music of the film will reflect Tendulkar's journey from childhood to cricketing legend.
"The music will reflect his childhood days till the point he became a legend. I am excited for it. That's one of the most awaited film of the year. So many people are looking forward to it," Rahman told PTI.
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Apart from this, Rahman, 49, will also be teaming up with filmmaker Ashutosh Gowariker for his next, "Mohenjo Daro." He has previously collaborated with Gowariker in films like "Lagaan", "Swades" and "Jodha Akbar".
"'Mohenjo Daro' is completely different. It is really a unique movie. It has got a lot of romance in it. And whatever I saw I really liked it. I wish the best to all of us."
"Mohenjo Daro" is an epic love story, set in the Indus Valley civilization.