The interview process consists of 4-5 rounds.

If you are at a remote location, the first round will be telephonic. Following that, you will be called for a face-to-face interview.

The interviewers are very skilled and cooperative. They can very easily find flaws in your code.

As there was an NDA, I cannot disclose the questions exactly. However, all rounds will have one coding question and questions related to testing the program in a real-world scenario of their product. The programming questions will not be direct ones like 'find the solution in O(n)' or similar. They are more focused on whether you are able to solve the problem or not.