Tech Mahindra interview questions

I was asked to take an exam by recruiter from Tech Mahindra. they have given confirmation that I cleared the exam and eligible for next F2F interview. It took almost 2 week after soo many followups. at last interview took place. but I did not get any feedback even I asked and mailed them. I have never ever seen this kind of people from HR department. It is minimum commonsense that to update a resource on the feedback.

Shot listed resume according to Telecom Experience. First round was a telephonic round. Mostly on Telecom architecture - OSS / BSS. Detailed mostly on what I did with CRM, Middleware and Billing applications. Then questions on Testing, processes and some on database. Second was face to face interview where more of team leading, scenario based questions asked. But were friendly. Then the HR one. Hardly any negotiation. Got offer within a week.