HCLTech PL SQL Developer interview questions

Applied to HCL Tech for PL/SQL developer position through naukri. No passed out year criteria was mentioned. Once after geting inside the campus I've been informed that this position is for recent batches.

I attended Oracle PL/SQL scheduled interview (but it was like walk -in) at HCL shols campus. I arrived the campus at 10:30 am and gave the resume to corresponding HR. For 20+ seats, they interviewed more than 150+ persons. There was totally 4 panels ( 2 for 1st round and 2 for 2nd round). I was waiting for my turn. I am not sure on what basis they picked up the resume for interview as i gave my resume on morning. Meanwhile they interviewed so many and took more than 30 people. Finally they called me at 5: 30 PM. I was totally frustrated and for namesake they questioned us( some 15 people) and ended by 5.45 PM. Just for 15 min interview i was staying for the whole day. Will NEVER NEVER attend any interview at HCL.