Persistent Systems Salesforce Business Analyst interview questions

I was contacted by a recruiter about a potential job opportunity and I found the role interesting. There are 2 technical/managerial rounds followed by 1 client and 1 HR round. First round was a telephonic round and was an hour long and covered detailed Salesforce discussion and role based discussion. Second round was a Techno managerial round and covered Salesforce implementation, role fitment and evaluation of business/product analysis skills. I cleared both the rounds and next one was going to be a client round. After the second interview, I was informed that internal process is completed and there would be a HR discussion before having the client round. Fast forward, next up was discussion with HR. We discussed the salary components and breakup and I was told that a draft version will be shared with me for a review. From that moment, I have not heard back from the HR or the recruiter. I was very exciting about this opportunity but I feel I wasted my time undergoing the interview process and attending multiple calls in between regarding the same. That's a very unprofessional behaviour.