Hey no worries even if you've lost your admit card as long as it wasn't signed by the invigilator in the examination hall.

A lot of students tend to lose their admit card due to the exam stress and its really easy to download a new one! You can go to the official website and download your admit card again or get a print of the already downloaded one. It really doesn't matter and it won't cause any problems in your counselling so you have nothing to worry about!