Dear Abhishek ,

Gap year certificate is the certificate for those students who have repeated a certain class or have dropped a year ,

gap year certificate is needed for those students whod dropped a year or 2 as a official statement by government ,

at the time of counselling process you need to show the gap certificate if you dropped a year ,

Gap certificate or Gap Affidavit is your declaration on the non-judicial stamp paper stating the reason for taking gap and declaration that you did not take admission to any other college, university or courses during the gap year.

You can buy stamp certificates from any notary, sub-registrar offices, courts.

For better understanding log in to the given link below :

https://www.careers360.com/question-what-is-gap-certificate-and-how-to-get-it-for-btech-college-as-i-have-done-coaching-for-1-year-plz-help

Hope this information helps you ,

THANK YOU .