Round 1: Hacker rank test. It consisted of two questions.
Q1: Longest Palindromic Subsequence
Q2: Some graph problem on DFS.
Round 2: Technical interview: Coding
Q: Asked to code multicache. Askes me how to solve the synchronization
Round 3: Technical interview: Coding. It consisted of three questions.
Q1: Inversion count with merge sort
Q2: Finding the number of islands
Q3: Numer of subarrays with M odd numbers.
Round 4: Designing round
Q: how to design Facebook homepage
Round 5: Manager round
Normal chat on my work and work at Dunzo
Round 6: HR round
Went well. Asked about what I do and why I wanna join Dunzo

After this, I was sure I will get an offer.