Interview happened for 6 hrs for just 4 people and passing all rounds, they have not responded for offer letter even after 4 weeks time. They are doing in similar pattern like Accenture where they call for first round again,after finishing 3 rounds of interview.

2 Technical rounds and HR... Fully based on multiple scenarios and performance optimization. ETL concepts, SQL, SAP load mechanisms, migration concepts etc and HR is to discuss the benefits and package based on your current role...Designation is confusing sometimes and be clear whether you are hired for Atos or Syntel