Amtex Systems Senior Software Engineer interview questions

I went to amtex for the interview before 1,2 week, it started with the one form related to person information, after that they told me to wait and to have a lunch if I need to do, I already told to the HR of amtex that I am coming from noida to gurgaon only for this interview and need to go back as early as possible, as I denied for the lunch, they called me from the reception to one cabin after 10, 15 min, after 15 min in another cabin, after 10 min they sent me in another cabin with the lady HR, she asked me some question related to my project that what I am doing and in which technology some question related to your resume. after that round another HR came to me and told me you can leave for the day, we will take a telephonic round now,which took near 10 min. I was surprised, they people are calling to the person from noida to gurgaon and after check the face they are saying you can leave, is this a some kind of joke to waste the time and energy of any person, I think they called me just to collect the information ,without any technical interview how any company reject anyone or can say to leave I will suggest to every person, first clear all the things before reach to gurgaon office, otherwise they can give you the surprised to you also. office seems just like a road shop, employee does not seems professional,