Capgemini Senior Developer interview questions

i got call from staffing agency.first round was technical written after clearing the first round got call for technical round.2 days latter got call from hr that you got selected and submit all your document and we will release offer letter in 2-3 days.still i haven't received offer letter.

Though it was scheduled drive it was not well organized. There was no sufficient interview panel and all the candidates are waiting almost for more then 4 hour for first round. Interviewer looks dumb and not clear on the questions and was reluctant to accept the facts and better approaches for problems. HR : Even after requesting for feedback no response... not even Yes/No. Please DO NOT attend this interview.It will be west of your valuable time.