I am a student at IIT Bhubaneswar and I can share a few insights that will help guide you to prepare for the IIT Bhubaneswar written text and interview. You must prepare well for the written test as too many basic and technical questions are being asked. I will share the question pattern for the written test below:
My interview experience was good. The interview lasted for 5-6 mins. There were only 5 panel members which is the usual number of members in the panel. For the interview be confident and answer the questions asked in detail. You must prepare properly for your specialization.