I interviewed on July 2018. There are 3 technical and HR round. 1st round happened on weekend. They not able to conduct further rounds because many peoples were waiting for the 1st round. They told me 2nf round will be one week day. After follow up on multiple emails they scheduled 2nd & 3rd round after 2 weeks. After completing 3rounds, hiring manager explained me about the project and told HR will contact you. After multiple emails they shared feedback i got cleared all rounds., Will contact you. But no calls, after multiple emails on follow up. They said they have only 3 position s and got filled. They told me to wait for 45days or more to join same prj which i gievn interview. Or if there are other openings you can try (again the whole process). 2 months over no response. I have 3 months notice period, that may be reason they like to reject. In that case they shouldn't call for interview.