Tata Consultancy Services Software Developer interview questions

20th Feb 2016 have attended my interview. Cleared all the rounds and had salary negotiation with the HR. Monday I got the call to submit all my docs and I have submitted. Tuesday again I got the call and I have been asked to go through one more round of technical round for evaluation purpose. Not sure what is this. Is this normal because this is something which I have heard for the first time in tcs.Tomorrow will be having my 2nd technical round. Keeping my finger cross.

Interview was off campus placement during 8th Semester of my B.Tech in COMPUTER SCIENCE. They have conducted a Written Exam and followed by technical and HR interview. It was technical interview which did not go well. Interviewers were friendly till they give me a program with string manipulation which was quite difficult to crack.