Its took almost 2-3 hour. 2 round over there verbal technical interview and ask also for the presentation.In last they discuss for salary i told about my expectation on over the phone. But they discussed in interview process. And debating for the salary. Or say at last wait for our feedback. But i didn't get any feedback from these people.They just wasted my time and money. I requested to requiter please First discussed all things on over phone. Then Invite for interview.