hi vaibhav,

securing 90% is great score,you can give UPESEAT exam.first,you can get application form from online from the official website of UPESEAT.the application also available in OFFLINE, i think you need to pay application fee.you can refer the below link for the step by step instructions of the process:

https://engineering.careers360.com/exams/upeseat

I Hope this information will be useful to you.

if you need additional information ,let us know to help you.

Thank you!!!:)