About yourself, What did you apply? What was your B.Tech project + whatever projects are mentioned in your resume? Multithreading; how will you handle the code if multiple threads are writing/reading to the same variable. I only attended Telephonic round.
Note::::
If you guys (TTTech ) are reading this then please focus on your hiring process and the most important thing is the feedback of an interview. It doesn't matter if it's positive or not.
If you say you have lot of candidates to reply then i would suggest you; kindly give a feedback to international candidates if possible.