Hello aspirant,

Hope you are doing absolutely great.

So with regard to your query, YES you can change it at the time of correction window. The correction window is made available to the candidates only for the purpose of altering the application details that are mentioned. If you still have any doubts you can contact the authorities of for this purpose, I'm providing you their contact number also.

Contact Number: 011-40759000 011-69227700

Hope this helps you,

Good luck, thank you.