You should prepare SQL knowledge for sure as there will be some test to write query. it last for about an hour. Also be prepare to answer your career history. Previous experience was not essential but good if you have. Hardware side also good to have. First there was telephonic interview and then it was face to face. Hope this will help you.

Nice with some sql query example. Interesting interview. Telephonic interview was conducted and tjen was invited for face to face where i was asked experience and what i know about company etc. I was asked to demonstrate some sql queries also. Those queroes were to do with select, incert, Update etc