Yes definitely you can have full chances that you will be able to use the caste certificate.

The year it was issued have no problem.so dont worry for 2014 Or 2019.The year does not matter.

All the best.

Hope well for your good future and your life.

Hello,
It totally works. All the certificate needs to say is you belong to the category that you belong.As long as it is clear, it doesn't matter if it was issued in 2014.
You can go through the link below, to know what all certificates are required for the procedure-
https://bschool.careers360.com/articles/ap-icet-counselling
Good Luck!