Cognizant Software Developer interview questions

I applied through a staffing agency. I interviewed at Cognizant Technology Solutions, In cognizant we have 3 rounds for freshers Written , Technical, and final Hr. For written just prepare from RS Agarwal it is enough.

Went for interview on 19th May 2018. Worst management i ever saw in life. First they ask you wait half n hour to make gatepass. Then they will take you to auditorium. Then they start testing your patience level. After passing 4-5 hrs still no one calls your name. You will just see people are keep coming but nothing is happening. I dont why they calls lots of people if they not able to handle it properly. Please respect interviewee, you people dont have a rights to spoil anyone's day.