4round in total 1st round was aptitude, contains logical, verbal, quant and technical sections; has sectional cut-off. no negative marks,. so attend all questions. Technical section had program output, error spoting, some concepts from data structure, operating sys, c++ concepts, time complexity of programs(bigO n al) 2nd & 3rd round were soo easy.. those were just formal interviews.. final round teliphonic interview.. in technical very basic concepts that u studied in engg(need not to worry), n to explain about my projects.