Interview Experience The interview started with a standard “Tell me about yourself.” Based on my introduction, the discussion moved into Django, followed by an in-depth focus on Python, which formed the major part of the interview. The Python section covered core concepts thoroughly, including: Mutable vs immutable data types Lambda functions map, filter, and reduce with examples Public, protected, and private variables (with examples and runtime behavior) Difference between @staticmethod and @classmethod Difference between == and is in Python Global Interpreter Lock (GIL) and whether Python supports multithreading Whether a list can be used as a key in a dictionary and why The interview then moved to Pandas, where I was asked about: Difference between loc and iloc apply vs map merge vs join Finally, there was a SQL round, which included: Types of joins Explanation and example of a self join What a stored procedure is Overall, the interview was concept-heavy and technical, focusing on fundamentals and real understanding rather than superficial answers. Being thorough with Python basics, Pandas, and SQL concepts is key to doing well.

The worst interview process I faced in my entire career. HR will not intimate you regarding the interview through call. Straight away they will schedule and send the invite. Once the interview is completed, if you try to reach them for results, they are SUPER BUSY that they will not pick your call or respond to your mail. I guess HRs are having super power in BNP, That's why they wont respond to queries of normal people.