Informatica Software Engineer interview questions

I am a fresher, Informatica came to our college for campus recruitment. There were 6 rounds in total, 1st round was online test, 2nd round was coding, 3rd-5th was TI and 6th was HR. 1st and 2nd rounds are pretty simple, but once you begin giving TI the questions keeps getting harder. They work specially on C++/Java, so they insisted me to solve DS questions on paper using Java. (I had mentioned it in my resume).

The interview process consisted of one written round followed by 3 technical F2F and one managerial round. I appeared in all the rounds and all went well and manager told me I am in top 10, and will let me know in 2 days. After that HR told me I am on hold. Its one month , I have still not got any call. I don't think, now they will call me. Interviewers seemed really helpful, but may be they just looked helpful, at the end gave negative feedback. All the interviewers were positive about me, still not getting a call, was a bad experience.