Firstly, congratulations on a job well done. ICSE 92% is brilliant...
Next, take my advice and stay off coaching classes unless you are just doing a vacation crash course.
They are only good if you are SURE about your capabilities to slog several hours continuously.
Even without coaching, as long as you study regularly and study smart, AIEEE atleast will be a piece of cake. (And I have seen only 10% of those who go to "coaching centers" make it to IIT anyway...).
Sometimes, overburdening yourself with coaching as well as schooling can result in you getting somewhere way below your actual capabilities. I'm an example for this.
