Mumbai, Jan. 11 -- As actor Hrithik Roshan turned a year older, his 'Fighter' co-star Deepika Padukone shared a special birthday post for him.

Taking to Instagram, Deepika on Wednesday shared an unseen pic on her stories which she captioned, "May you forever nurture your inner child @hrithikroshan."

With their arms intertwined, Deepika and Hrithik were seen fighting for a slice of pizza while the candid picture was being taken.

Soon after the 'Piku' actor shared the picture it went viral on social media.

Deepika and Hrithik will be soon seen in director Siddharth Anand's aerial action thriller film 'Fighter'.

The film marks their first-ever on-screen collaboration.

'Fighter' is all set to hit the theatres on January 25.

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