Siemens Senior Software Engineer interview questions

I got interviewed at Gurgaon office in sector 29 . The overall interview process started with technical round . Sheer due to mismanagement my interview took place 4 hours after i arrived . Also there was no systematic way of calculating who got interviewd and who got selected . My interview was good and went for 30 mins . I waited for my result for an hour .Later on enquiring to a managing person He told me that i was not selected . Although i was pretty sure of my interview since i answered everything . I had a doubt but didnt knew who to ask all the guards and punes were managing everything . So i left i dropped a mail to the Hr who called me for the interview regarding this to which he said that he will update me on monday only . After an hour of me leaving office I got a call that i cleared the interview and have a second round . Happily i went back Now this interview was design and standard based and it went awesome better than the first interview i was sure of the job now . But then later the same guy again told me to leave for the day . I was shocked again but cant do anything . I am pretty sure there is something going on some backdoor entry or something on my name . Anyways i cant help Overall all this happened due to mismanagement probably HR should be more active a

They asked all questions from Core java only . My Interview was good , I answered all the question but did not get call for next round. Atleast they should informed me clearly that either cleared 1st round or not.