Hello Rahul,

the annexure 1 in the CSAB business rules is the affidavit made by you at the notary office in front of your local court. if you want to participate in the CSAB special round then you have to submit this affidavit at the time of document verification. If you want to know more information about the CSAB special round then you have to check the official website of it. here is the link.

Https://csab.nic.in/cms/Public/Home.aspx

Once you can go through this link and check the business rules. hope it helps you.

thank you.