[Resolved]  Cognizant — Not received offer letter from cognizant HR

I had two round of Interview ( jun 10th and Jun 23rd, 2021 ) and then HR madam ( email priyadarshini.[protected]@cognizant.com) congratulated me and discussed about the job designation and salary and asked me to fill candidate information sheet. In that sheet i filled my personal details and replied back. then no call, no mail nothing. after 1 week when no mail came, i tried to call her and sent mail but no reply.
Even I have our conversation audio file where she promised me to processed the offer letter within 2 days.
Please help me to solve my issue.