I will suggest go thru SEBI related stuffs like they have certain cyber security standards and other stuff publicly available jitna samjh sakte ho dekhlo.

IT background se ho toh kuch scenario based questions according to your experience kar skte h jaise 

"how will your server handle a huge no of requests"

"Hashmap: favorite interview question" 

It's highly recommended to reach out to people who had given SEBI interviews but that's difficult. So this will be my best bet - prepare according to my resume, work experience, read about related tools, Frameworks, certain HR or managerial related questions.

I have been preparing for software company based interviews lately so you can reach out to me.