Cognizant Technology Solutions — Date of Joining

My DOJ was on 16th July, 2021 in Pune but on DOJ no one contacted me from CTS. no HR is talking. I didn't get any HR mail to contact to only asked to summit my PAN, Adhaar Card, Passport Acknowledgement, Affidavit for Provisional Certificate, all give semesters marksheets from graduation on 10th July, 2021. Will anyone contact me about this or offer letter will be terminated...??