There was a telephonic and face to face round in client company, They discussed till HR round and etc about package, later before releasing the offer letter they said they couldn't go through my profile. What does this mean? i was not selected? what shuld be the conclusion with this? Sincere request to the company is if you are committed , stick on with it. Don't change your decisions at the end moment. Thinking that this is good company many people would have rejected other offers(the same happened with me tooo). Don't play with them. If the candidate is selected make sure you dont have any complications from client company before calling them. People who are waiting for offer letter shuld not be said they are rejected. Please remember this is someone's career.

Interview is easy with only basic questions on react and js.Code sandbox and js fiddle is what you need . Just basic dsa question as to remove duplicates.Or find the frequency of letters.