Concerto Software Software Developer interview questions

First i cracked aptitude round and next is technical round which i cracked properly and final HR interview is good.Finally i got call from HR your HR round is successfully and next is of offer letter.

It was a walkin drive , 1st round was aptitude normal Logical Thinking and match questions ,2nd round was group discussion they will give you a topic and you have to speak for 2 minutes on that topic , 3rd round technical , 4th round technical + Hr