Cognizant Technology Solutions — didn't receive offer letter from cognizant

Address: Chennai, Tamil Nadu

Hi,
I attended interview on feb 8th 2020 for java developer role in chennai location.
I cleared all rounds and package discussion was also done. Hr told that i will receive offer letter with in a week. I just got select status tag from talent acquisition. Apart from that i haven't received any response from them. Please help me regarding this. I don't have hr number as well.