Mail was sent that your resume has screened for interview on so and so day in Chennai. No Call letter shared .once we have given interview no response even after multiple follow ups post two weeks

Interview had two rounds. Technical and HR round. Technical round was okay . After discussion with HR on the salary, all the documents were provided to them. I was informed that offer letter will be released in a week, but still there is no response. Recruitment agency dont have any clue on when the offer letter will be released.