Siemens Software Engineer - UI interview questions

The interview process was quick. There were two rounds. First was the technical interview and then the Hiring Manager. After one is through that then there are salary negotiations and finally, an offer is made

Worst interview experience ever, never seen such irresponsible HR people ever. They will tell you to wait and just wait, I got selected in the first round, but when it came to the second round they told to wait, I responded that I am ready to come down again as I had to leave, they scheduled another round for me on the next day, I was there on the scheduled time on the next day, but still they told to wait! Hr told me she will come to meet me up, no one approached, neither I could find her there, she did not pick up my phone as well, I just waited and left for the day. If they are not willing to select anyone, directly say NO, do not tell to simply wait, this happened in electronic city Bangalore.