Zendrive interview questions

The interview process is not smooth at all. I got a call from a consultant; she mentioned this profile is specific to SDK development, so you have to answer two questions related to SDK. The team will review this, and if selected, they will proceed with another round. After sending the detailed explanation of those two questions, no call was scheduled for a month. After a month, she again told me that the panel is now free for the second round, and she scheduled the interview without telling me what the second round is all about. It was a DS-Algo round, and I cleared it. The third round got scheduled within the same week, again without telling me the context. Every round went well, but I haven't received any updates. After some time, I asked her to update me on my profile, and then she mentioned that the team decided not to continue further. I asked her about the feedback, but she gave no feedback. After reading the reviews section, I think it is clear that they prefer only Tier I,II college candidates only.

First round was HLD round, asked a basic question on design. Explained more or less everything , but since the design is broad concept, I am not sure what he was looking for. I covered all the scalability, durability and reliability concepts. Got a reject mail, not sure why. The interviewers at zendrive needs help. As some one mentioned below they won’t select unless u are from iit / tier 3 colleges.