Tech Mahindra Developer interview questions

Tech Mahindra Sent me email regarding my selection for interview. They said recruitment is on urgent basis. Taken one F2F technical round. Same day said first round is clear and soon they will call for second round as many candidates were that day. Then Recruiter said after 1.5 months that they are very sorry for delay and second round will be on skype on a scheduled date.I waited for through out the day, but didnt get any call. After to that when I tried his number he didn't pick up and even didn't respond any of my email. When I called from different number, he picked and said the process will still take more time :( It was wastage of time.