Cognizant Technology Solutions — Complain about a person who got job using fake experience certificate

Address:

Cognizant, Banglore.

I know a person who got job in cognizant banglore as associate project at cognizant
using 3 years of fake experience certificate and he paid 50000 inr for the job his team leader also know about the fake experience, he sharing his 30%salary with his team leader for covering his mistakes, where can I complain about this?