MindNerves Technologies Software Developer interview questions

I had applied through an consultancy. First round was written test held at an private engineering college. I cleared that round and I was called for further round at company office in Hadapsar on 24/02/2018 . In their office initially they have given 3-4 programs to be written on paper.After that they shortlisted few candidates for further round. In the next round they have given 4-5 programs .The round lasts whole day. At the end they gathered all candidates and said that, they will hire all of us. But they will give assignments to be solved at home in one week, after solving that assignment they will hire us guaranteed. I have solved all the assignments properly, but t I didn't get offer letter. They had given surety that after submitting the assignment they will definitely hire. At least they should have tell me that I have not selected because of any reason.

1.First round was aptitude test. 2.Second round was programming round .Which was very very tough this round takes whole day. 3.Last round was hr round ,they just ask basic question ,be confident there will be 10 different programming question,not exactly 10 more than that in 3-4 programming round.Like for first programming round there will be 4 after that 2 likewise