Hi,

Yes, 93 percentile is a good score for February attempt, but it is not advisable for you to skip the other attempts as there  is a chance that you will perform better in consecutive attempts and since, you best score will be considered you can get a better opportunity to get in NITs or IIITs. And also , percentile is basically a factor that is dependent on other factors like difficulty levels and is a comparison between your score and others too, so to be on a safer side, give the remaining attempts too.

I hope this helped you.