FIS Software Engineer interview questions

The interview process went for almost 2 months and I cleared 5 round of interviews and then had a final round with HR that went for more than an hour after which HR offered me salary and also told me about all the benefits that I will be getting . Also, she informed that I will get the offer letter shortly or by next day. Guess what ? That day never came. I followed up for around 15 days and everytime she said its in process and then called me and said they can't gave offer letter and made some stupid excuse like project on hold etc etc. She came back saying she will arrange interview with another team but I declined this time.

It was really nice they took total 3 rounds in interview process 1. online written test 2. technical round 3. managerial rounds I have cleared written test after one week I got a call from hr, said I got shortlisted for next round. they arranged technical and next day managerial round.