With a percentile of 97.76, you have a very strong chance of securing admission at DA-IICT (Gandhinagar) under the NRI/Foreign National (DAFS) category.

While the competition for the "All India" general seats requires a 99+ percentile for top branches, the NRI quota has a separate merit list. DA-IICT requires a minimum of 75 percentile in JEE Main for NRI candidates to even be considered eligible, meaning your 97.76 places you well above the baseline.