Tech Mahindra Senior Software Engineer interview questions

I had two round of interviews only, first is technical then it took more than 10 days to get the availability of client to have final round of interview. Everything goes well. But just because of there hr consultant i lost this opportunity as she a lot of language issues and also she mentioned wrong mail id to the client due to which i am not sure what happened but she have me the reason that your id duplicate at client’s end. There is alot off issues with the mail id. Also had alot of issues while having background verification even if am providing all the data accordingly.