Well before going to look for verification of educational certificate procedure, Interviewer /recruiter/employer must understand the concern /worries that put them into this situation.
Suggestions provided by Sharmila ji and Ms (Cite Contribution) are appreciated, but before going further, I would like to ask a question
-How many of Interviewer /recruiter/employer (in your knowledge) likes to go for verification of Educational Certificates of a candidate/employee in general.
So far the query/questions been answered but I feel the concern that ask any Interviewer /recruiter/employer to verify the respective educational certificates of an employee/candidate and whether they are original or fake, is matter most actually.
Like believe and used to say, “There would be no answer without a question” which needs to be understood before going further. Answer of a question can be interested and in many but one thing is certain that it gives us lot to learn.
Lastly the best way to verify the certificate (if required) is the way suggested by Ms (Cite Contribution) above and for further, one can go to the ways suggested by Sharmila ji.