I went through two rounds of interview, one by VP and the other by AVP. In the first round, I was asked some basic questions related to my career till then, and also questions related to work and projects at my previous (then current) organisation. Second round consisted of questions on aptitude and technical skills (asked me a couple of aptitude questions and then sas/sql related questions). The two rounds were conducted on the same day, around 30 min each.
A final HR round was also conducted, but it was more of a finalising thing than an interview.