SitusAMC Senior Full Stack .NET Developer interview questions

They conducted all the 3 rounds. I was selected in the 3rd round as well .I called the HR as she didn't call back herself and she said my expectation is our of their budget.My expectation was clear before the interviews were conducted .They could have told me the same before taking the interviews.They wasted my time as well as hope.Note to HR :If your budget is low then please don't waste any candidate's time. At least have the courtesy to inform the candidate yourself.