3 interview rounds, technical one round and hr one round and manager one round. However time from application to shortlisting takes months. There are times you have to be really really patient with the selection announcement calls. Sometimes there won't be any response.

They will have minimum 4 rounds, if you go there as a fresher, they will conduct Aptitude round followed by two technical and a HR round. For experience professional it is just 3 rounds of technical interview.