Three hour coding round with a graph problem, got a partial solution. Made it to the technical interview but AI and ML concepts tripped me up. They hire for R&D so it's different
Coding round was 3 hours for a single problem yes u read that right, very different form most companies. Mine was a data stream compression question combining hashing and binary trees. Technical interview after had OS and DBMS questions and a Python vs C comparison. HR round had a logic puzzle which I wasn't expecting.