Netcracker Technology Business Analyst interview questions

The interview process is too slow and not having proper process. Nearly It took 3 months for my all the round interview. Had 2 technical round, 1 manager round and 1 HR round. After few follow-up HR said , the requirement is changed need exp in different domain but in JD it was not mentioned.

Interview process started well, I was getting proper calls from the recruiter about all the 3 interviews. But after HR interview round, they mentioned that their lead HR is not well so the offer letter is delaying and then I got a call to discuss the salary part and I agreed to the proposed salary. Recruiter said I will be getting offer letter by this friday. But it did not happen, I called/emailed them and they were not responding properly. One day, recruiter picked my call and said the position is on hold. It was heartbreaking and disappointing experience with this company.