iTech Workshop interview questions

At first, they had an Aptitude round on one platform. After that, there were two technical rounds with a panel of two persons each. Both rounds were held on the same day at the company location, and both rounds were select or rejection rounds. I cleared both rounds. After the second round, the HR said they would call me for an HR round, but they never called or picked up my phone. Today, after 7 days, I received a rejection email.