4 rounds excluding HR discussion. 1st round on phone and 3 onsite. All of the interviewers were nice except for the last one. The last interviewer was rude and unprofessional. The last round of interview started with the statement that my resume is tailored and I don't know what I have written on my resume and this was somehow evaluated without having a word with me and the interviewer was shaking his head and shrugging every time even before I end up answering something. Communications from HR were slow and I had already made my decision before the offer was released.

Round 1: Aptitude, Easy DSA Round 2: DSA easy, DSA medium, C++ in-depth, multithreading Was asked to implement vector class with rule of 5. DSA question was based on DFS. Round 1: interviewer knew how to take a interivew and not make it a exam, It should be discussion. Round 2: Need to know how to take interviews, They asked DSA question like it was exam. Gave the question and then pin drop silence, I was thinking out loud but literally no response, not even a hmm,ok :/