The interview process consisted of four rounds:

1. Aptitude Round: This round included questions on C, C++, Data Structures, OS, and general aptitude. There were approximately 45 questions to be answered within 1 hour.

2. Technical Interview Round: This round mostly consisted of writing algorithms, followed by a few basic concept test questions. The interviewer may also review your mark sheets and other qualification details.

3. HR Interview: This round involved simple questions, as many expect. Some questions included "Tell me about your interests," "your hobbies," "your strengths and weaknesses," and a few questions about your projects.

4. Senior Recruiter Round: This round was simple and primarily tested your frame of mind. Questions included "Why do you want to work with NVIDIA?" and "What if you don't get it?" These were simple questions, but it's important to be truthful and honest when answering.

Write a C code for finding a loop in a linked list.