Hello Anju,
First of all see your eligibility for admission in GNDU, which is minimum 50% marks in 12th in PCM subjects.
Then GNDU allow admiaadmis on the basis of JEE mains result for B.tech and NATA result for B.Arch
So you have to clear these exam with a required rank to clear cut off.
Hope this helps, Thank you
All the best
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