Round 1 - Basic python coding questions like: Fibonacci, find missing number in unsorted list having 1-100, find unique characters in a string and no. of their occurrences, Decorators, Threads Round 2 - System Design Design a class Bank having two function to credit and debit account of a given account number. This is tougher than it seems as one has to guess the edge cases and it might be difficult to understand in which line the interviewer is expecting you to plan these algo.