Round 1 -
Mettl Assessment Test (Level - Easy/Medium)

Round 2 [PS/DSA Round] -

1. Right View Of A Binary Tree
   https://leetcode.com/problems/binary-tree-right-side-view/
2. Kth Largest Element
   https://leetcode.com/problems/kth-largest-element-in-an-array/

Round 3 [HLD Round] -

1. LFU Cache Implementation
2. High Level Design Of Inverted Index In ElasticSearch
3. Some High Level Design Concepts Like Difference Between Horizontal Scaling vs Vertical Scaling, CAP Theorem etc.

PS: Had A Better Offer In Hand, Hence Passed This Offer.