Cognizant — Regarding working hours

My friend is working in cognizant company as a programmer analyst. According to employee policy. One should work for 9 hours. But only in his project. He is working more than 9 hours daily and also it is like till 12 AM. He is very afraid to ask this against his managers. So as a friend i am here to get a genuine solution. That cognizant should make their employees should work only for 9 hours. If they are working more than 9 hours. Give them extra payment.