Playing a visually-challenged girl in the upcoming romance, 'Do Lafzon Ki Kahani', has been the most challenging role for Kajal Aggarwal. In fact, the actress, who worked with visually-impaired students to ensure that she depicts her character convincingly, was so inspired by them that she decided to donate her eyes.What's more, seeing her conviction even her co-star Randeep Hooda pledged to do the same. During the shoot, he realised how difficult it is for such people to do simple things in their life that we usually take for granted. The actor feels this is the only way to help them and is happy to take this little step towards community service.

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