Hi Hima.
It is unfortunate that you made such a mistake in an important form. The best you can do is contact the admissions committee and find out if there is any way for you to undo your mistake. I am providing you with their contact details as stated below:
Telephone numbers: 91-11-26588500, 26588700, 26589900
Try calling them during working hours. Hope it all works out!
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