The problems posed will not involve lengthy calculations, but will test the basics, and the ability to think "on ones feet". Such questioning could last 10 to 15 minutes. Following satisfactory performance in this part of the interview the candidate will be asked questions in the proposed area of research or any related area. These questions will be from topics of undergraduate study (for M.Sc. Engg) and topics of post-graduate study (for Ph.D.). The nature of the questions will be to explore the students clarity of thinking and deeper understanding of the topics, rather than descriptive system level knowledge.