First round of interview was technical and it was good. Then next they took around 5 rounds randomly. Their HR will call suddenly and will ask someone X want to speak. I cleared all the rounds and HR told they will release offer soon as they are waiting for approval. Next day he told its been approved by india head and some other formalities are remaining and they will release the offer soon. Next day i called but he didn't replied and suddenly he called evening and asking for some skype round. Then they told they will release the offer and let me know. Then i call many times there were no response. I had two more offers and i clearly told them they need to clear the things fast. They didn't responded and i joined other company which is a product based. After someday that HR called me again and asking for joining Hitachi. I asked where he was these many days and he is very care less. I heard many things before about Hitachi and their culture. You can even find here so much bad about the company, their own employees are complaining about management. This HR proved infront of me. I will never suggest anyone to join this kind of company who don't bother about persons. Opportunities never wait for anyone.