Tata Consultancy Services — offer rejected after taking document without any reason

Hi team i have interviewed in tcs on 15th dec walkin and same day after hr round they called candidate for document submission who is selected and ask to upload document for further process, i have upload all document and then on 19th december again get call from tcs hr team that upload one more document, i have done the same.

On tcs ibegin portal i can see the status it is evolution in progress and i was thinking that it is in progress, may be due to background verification so i did not contacted tcs, but one it passed 25 days then i tried to contacted and mailed to hr team.

I mailed gaurav tyagi for status who called me for interview, then after 2-3 hours i got a mail from prachi garg that my offer is rejected without any reason.

Then i tried to contact prachi many times to ask the reason but she did not responded and tried to contact hr team of tcs after one week some one saying your profile is in progress let me check then will update you. Then i waited 2-3 days try to contact but no one responded.

As i know about tcs if document of candidate is processed then offer can be only rejected if there is any irregularities in document and can not be corrected.

Could you please help me they illegally replaced me with there own belonging candidate this not correct. I need reason.

Thanks,
Arvind