HR called me during my working hours, and I requested her to call back later as I was busy at that moment — I was in the middle of a deployment. She didn’t call me back, and now she’s also not answering my calls.

Very straightforward, clear, and transparent process. Good description of role and responsibilities early on. Salary however was not shared until placing offer sharing budget beforehand would be ideal. HR was cooperative in setting up reasonable timed interviews.