Hrithik Roshan plays a visually challenged man in his upcoming film 'Kaabil'.

The star spent hours interacting with people who have spent their lives in darkness.

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Hrithik said, “When you shut your eyes and start absorbing the world around you, you realise how your other senses are enhanced to another level.

"Now, if you blindfold me, I can walk around my house in complete darkness.

"Initially, I'd bump into things, but now, I can find my way smoothly. I know exactly where everything is placed, including the books on the shelves."

Co-starring actress Yami Gautam, actors Rohit Roy and Ronit Roy, Kaabil is produced by Rakesh Roshan with music by Rajesh Roshan.

The is released in January 2017.