I had my interview at Lucknow on 17th Jan for the Prime role of TCS.

It was quite a mess before the interview. About 23 of batchmates were selected for the prime role, and only about 10 of us received the mail on 13th Jan that we are gonna get interviewed on 14th Jan at Lucknow TCS Campus. The shocking part was, we all received the mail on 13th Jan about 1:00 PM, and we were all at our homes and for some of us it was almost to reach there by 14th Jan - 9:00 AM.

After talking to the HRs and insisting them a lot the interview was rescheduled for 15th Jan which was again got cancelled and then finally there was an official notice that it's gonna happen at 17th at the same venue. That time was quite hectic and uncertain for some of us.

Let's jump on the main part, we arrived there at 9 AM and firstly there happened the document verification which went on till 11:30 AM.

After the docs verification one by one each candidate was called for the interview. There was a separate panel of three HRs for the prime candidates.

My turn came around 12:20 PM and I went in.

Here are the questions and a few responses of mine which might help some of u to not do the same mistakes that i did. These are the exact answers that I gave.

1. Started with the brief intro of mine in which I introduced myself and some of my projects and the experiences.
2. They then asked me about my family background, about everone.
3. Whether I'll be relocating to the southern part of the country or moved on to London, will I be flexible? And also asked me if my family would be ok with it. I firmly responded with YES.
4. Then there was a little discussion on my projects, some basic questions on it, which I answerd with ease.
5. Then they asked me about which is my primary programming language, why only this, what do I know about it, some important applications of it where it is usually implemented, etc. So basically C++ was the language related to which i explained them.
6. They then hopped on the OOPs concept, asked me the four pillars. The discussion on OOPs lasted around 7-8 minutes in which they asked me a lot of questions, like what is the real life use case, why it was actually improvised, back to 50 years when there were no computers how OOPs can be defined to people. Constructors, destructors, told me write the code on them in a A4 sheet too, which I did smoothly. Shallow copy vs Deep copy.
7. Pointers - 'this' keyword, call by value vs call by reference, why pointers, etc.
8. Upto here the interview was going very smoothly, and after here I messed up a bit which was quite gruesome. One of the HR took the sheet and wrote a pattern(a basic star pattern) on it, yes a basic one that I used to code blindedly in my first years of college. I messed up the code and he then was quite disappointed on me, then he asked how did u ended up getting selected for the Prime role when u can't even write the basic code that is now even being taught to my kids in the school and hearing those words my confidence shattered and then I started losing myself. After a deep breath, I explained him how I ended up for this interview for this particular role, I told him I gave the TCS NQT exam and solved the first question completely which was an LCS problem of DP, a typical LC problem, and the second problem was also a heavy DP problem for which I was able to pass 4 out of 7 test cases and then he was like OK, and then I took a sigh of relief.
9. Then he made me write the recusive, iterative, Memoized code of Fibonacci series, asked me to write the code of BST and told me dry run and explain it, Tortoise- Hare Algo of Linked List, swapping of two numbers using pass by value and pass by reference, asked me about NAN, exceptionl handling, operator overloading, Null pointer error, overflow, etc.
10. Here my TR round was over, and then the HR asked me about my college life experience and my key takeaways from some of these experiences, which I explained.
11. Asked me whether I'll be willing to join if I got selected even for the ninja role which I responded with a yes.
12. And then asked me what will u do if u do not get selected for the role.
13. He again asked me if I'd be moving onto south India for this role if they sent me and where do I see myself in the next 5 years.

Here my interview was completed, and the result isn't announced yet, as some of my friends' interview hasn't done yet.
So I'll be updating this as soon as I get the result, whether I get selected for any role or not.😊

Update: The result is still not announced in my college for some students(including me), don't even know will it be announced or not. They gave two lists of selected students, and I was in none of'em. As I told earlier 23 students appeared for the Prime role interview and none of them are selected for any role above Ninja, only about 4-5 students are selected for Ninja role and the rest of us are still having no clue. Then tried connecting to the HR team of TCS, they responded with "There will be 2 more lists yet to be announced" and since then has been waiting, but now I have lost hope. That behavior from the HR team is very unheard of.