What are the requirements for duplicate equivalence certificates?

The requirements for duplicate equivalence certificate are as under:
a. Application for issuance of duplicate equivalence certificate
b. All Original documents for which equivalence is required.
c. Photocopy of previous equivalence certificate
d. Double fee
e. Advertisement in a newspaper for loss of equivalence certificate
f. An affidavit, duly attested by 1st class Magistrate on stamp paper of Rs.50/-