I got another opportunity after this interview loop. The recruiter said that I had cleared the DSA rounds and I had to give only HM round.

https://leetcode.com/discuss/post/8409230/interview-experience-amazon-sde-2-3-yoe-xkxue/

I went through the HM round, it was an HLD round. The question was creating a subscription service. Users create subscriptions, like 2 packets of milk every monday. We have to create a system which automatically places orders for such subscriptions. 2 LPs at the end(deep dive + conflict).

After this, a bar-raiser was conducted. It was supposed to be an LLD round(as the recruiter said). It was conducted by a principal architect, which spent 40 mins discussing on the resume only, and two LPs at the end(deep dive + invent).

For subscription system, a good HLD to read is Building a Job Scheduler System.

The HLD round was quite hostile, the interviewer ranted for 1-2 mins over every attribute that I missed in the entities.

Regardless, I haven't heard back from the recruiter.
Posting this if it helps anyone.

Thanks, and good luck to everyone!