Cogitate Technology Solutions Associate Software Engineer interview questions

I received call based on my cocubes score. First round was HR interview. Questions were basic like strength, weakness, goals , achievements, why should we hire you, challenges faced and about family etc. Second round was technical round, conducted for about 10 minutes. Questions were based on OOPs concepts and basic javascript. Third round was again a HR round which was basically for salary and job role discussion.Sir asked me to inform him whether I am willing to join the company or not the next day. I called him to say yes. He said that there was some other shortlisting based on which offer letter will he given and I will be informed about it within a couple of days. Since then, there was no contact from their end. Atleast they should have informed me that there will be no offer.After 3 rounds they just disappeared without informing me the reason.Highly disappointed.