resume short list , aptitude , interview , selection , ask about the project i done , about python , DBMS , OOPs concept , RDBMS , networking , aptitude , puzzle , aunthtication

The interview lasted for nearly 40 minutes, and I felt confident because I was able to answer all the questions clearly and correctly. However, despite my performance, I received a regret email after almost a month. It has now been more than 7 months since that experience, but I still reflect on it and hope to understand where I might improve.