Mindfire Solutions interview questions

i applied in their portal ,from application to getting first call it took 3 weeks, the interview started with questions on langchain and langgraph, their differences, in langchain what design patterns are there, is the process syncronus or not, then came to a system design problem where they asked to implement a search functionality for a company, a order placing/ order status knowing, a enquiry feature , what will you use, how will you design the system

Interview 1- oops concept, coding Received offer letter Received call from HR( Padmavati), 6 days back from joining date. They scheduled another technical round, interviewer ( Shrikant Diwedi) he was bullying me and very rude , and rejected me. DO NOT JOIN THIS COMPANY EVER, there is no guarantee for job security.