It was an on-campus drive which had only two rounds.
The first was aptitude, mostly of number series and work and distance.
The second round was F2F with two HR people asking about the resume and all the technical stuff.
Whatever topics you have mentioned in your resume.
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.