Tata Consultancy Services System Engineer interview questions

After my resume got shortlisted I had 3 rounds of face-to-face interviews. The first 2 rounds were Technical based and the last round was HR. The first interview included questions on the fundamentals of Chemical Engineering and some questions regarding my project. After the screening I was called for the second round which was more about my project and various techniques I utilize in that. The second round was much more comfortable than the first and gave me some confidence. When I was called for the HR round I was more or less sure that I will be getting a job offer. The interviewer was very friendly. He kept on asking me to ask him questions till I ran out of them.

It had technical and Hr interview, Technical was today the OOPS concepts and linked lists, HR was on my self evaluation. questions are like reverse liked list, inorder traverse of a tree without recursive, remove duplicate in array, and sort algorothm