They had an aptitude round and who ever clear aptitude ,need to go through further 3 rounds and questions asked was very toughthrough further 3 rounds and questions asked was very tough

It was a telephone interview with the hiring manager. Started with general stuff about tell me about yourself and later they explained more about the open position on hand. I had two rounds to confirm my skill level. Needed some preparation on interviewee side. If I had cleared this - the next step was two rounds of interview with team and managers.

one phone interview, ask questions about projects. one easy design questions. then on-site interview in the next week. 5 round interview. ask problem about timing issues, setup, hold time violations. pattern detection. writing some verilog code. ask about sram, ddr. ask about how to design a TCAM.