Hey there

UPSC conducts many exams please mention the specific exam you want to know about but for civil services then the only educational requirement is that the candidate must be having a bachelor's degree or have given the  final exam and waiting for the results.

Check complete eligibility for UPSC civil services

https://www.google.com/url?sa=t&source=web&rct=j&url=https://competition.careers360.com/articles/upsc-civil-services-eligibility-criteria/amp&ved=2ahUKEwiasarfn43lAhXYZSsKHYgmAg8QFjACegQIERAJ&usg=AOvVaw0AksHiuK9fcFhdnfcac0NU&ampcf=1&cshid=1570557952781 good luck

Hello Amit, there is no such eligibility criteria about requirement of a minimum percentage required for application. You just need a bachelor's degree in order to apply for the UPSC exam. If you are in the final year of your graduation, even then you can apply and chose your marks to be submitted once they are available.