Basically, it has everything to do with your communication skills. That's it. Work well on that. Practice, and you will be good.
Be really confident with the basic questions they ask about yourselves, family, education, projects, etc.
Introduce yourself.
Education + Projects
The following metrics were computed from 439 interview experiences for the IBM Software Engineer role in India.
IBM's interview process for their Software Engineer roles in India is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for IBM's Software Engineer interview process in India.