1st round was aptitude round which had 5 technical and 10 logical reasoning questions. There was no options for the questions. For technical questions we had to write the output. This was followed by 2 rounds of technical interview. It was easy. They asked simple programs like fibbonaci ,prime number,palindrome,bubble sort,binary search in these rounds.They asked 2 or more puzzles in each of these rounds . Next was the managerial round. It was also a technical round. Since the requirement was for RnD they will test more of your analytical skills...