Tech Mahindra — Didn't receive any mail after registering

Address: India

I applied in Tech Mahindra for the role Associate software engineer on 11th April 2022.After applying I didn't receive any mail of my registration id and registration pin number, it was showing that I applied it already. I even tried with different email id then too it was showing I applied already. I kindly request you to solve this issue as soon as possible.