I applied through college or university. The process took 6 months. I interviewed at Tata Consultancy Services (Calcuta) in May 2025
Interview
First, a 15-minute technical round followed by a combined managerial and HR round. Three panel members conducted the interview, asking both technical and behavioral questions. Overall, it was a balanced experience.
Interview questions [1]
Question 1
Round 1: Technical + HR Interview
The interview started with some basic questions about SDLC (Software Development Life Cycle) and general concepts.
After that, I was given three coding questions to solve:
Swap three numbers without using a third variable
Check if a number is prime
Generate a Fibonacci series
Since my department is AI & ML, they also asked a few machine learning basics, including:
What is Machine Learning?
Types of Machine Learning (Supervised, Unsupervised, Reinforcement)
Difference between Linear Regression and Logistic Regression
They also asked me to draw and explain the Sigmoid Function graph
Finally, the HR asked if I was ready to relocate and open for a support role.
Overall Experience:
The interview was moderate in difficulty. The panel was friendly and focused on testing both basic programming and core ML understanding.
I interviewed at Tata Consultancy Services (Noida)
Interview
It was easy, Interviewer just asked me basic question on CS fundamentals, no DSA questions were asked. Interviewer was friendly and understanding, only one interview was held. Just be confident in what you answer.
I interviewed at Tata Consultancy Services (Mumbai)
Interview
The interview consisted on 3 rounds. All included technical questions from resume. Just study your resume well and be ready for behavioural questions.
They would also ask some basic implementation on what your work was done and how did you implement that
There was only one interview round that combined technical, managerial, and HR discussions. The interview covered technical concepts, project experience, problem-solving, teamwork, career goals, and general HR questions in a smooth, well-organized process.