Dear Yash

Annexure-A is just for only reference purpose so that candidate can know what are the eligibilty criteria should a candidate possess to avail the benefit of EWS reservation.

Though, Annexure-A contain the prescribed format(page no. 7 "Annexure-I") of EWS certificate which is made compulsary to have it only in given format and only then it will be applicable and accepted as a proof for claiming as EWS category.

For signature purpose, refer to point 5 at page no.2 of Annexure-A.

https://mcc.nic.in/UGCounselling/Home/ShowPdf?Type=E0184ADEDF913B076626646D3F52C3B49C39AD6D&ID=4C15DC21C91634C1B301DE6236EB08EAD86BE4AE

Hope this helps you.