Guess who: This Olympic medallist is one of India's biggest female sports stars

This picture was posted on Twitter by a fan of one of India's biggest female sports stars. The picture is of her childhood, or should we say infancy. The sporting icon even retweeted and 'liked' the post. Can you guess who she is? Here's a clue: She's an Olympic medallist.

The sporting icon is Saina Nehwal.

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