went for face to face after clearing telephonic round. Technical discussion with lead it seems. After that I was made to have lunch there so that I can have discussion with Manager. Manager asked some non sense question and asked me to come again as he had important meeting to attend. same evening I was informed by recruitment agency that I was not selected. I am still wondering how unprofessional these people are. Just a bunch of idiots who does not care for time of others.

Standard interview process: initial HR call reviewing background, then a technical interview. Task focused on refactoring a class to enable single-instance scaling with multithreading. No behavioral or system design questions so far