Hi Aspirant!

JoSSA did not take the certificate after giving it already.But if you accidently give the wrong certificate then do not worry they will revert back to you if there will be any problem.For your convinience you can mail on their contact regarding your query with new certificate attached.Nonetheless if you already get the seat your chance of seat rejection is zero just on the basis of simple mistake.

I hope it helps.

Happy Hustling!