NTT DATA PMO interview questions

Got the interview through an agent.Went for the interview,after a week got a call from agent saying they are interested but for different position.Only after a month plus,got call for second interview.Before that,agent convinced that they are very interested to hire and just waiting for the hiring manager approval for offer letter.After second interview,no reply from HR or Agent.HR is not responsive at all. No closure,nothing. Please get your decision making process firm and communicate to candidate only when you are confirm to hire them. Warn the agent to not make a promise when thing are uncertain.The most bad interviews experience that I went throughout my expereinces.