Salary negotiation is an ongoing process in today's corporate scenario. We negotiate over everything in our day to day life be it grains to finalizing big deals. Salary negotiation is very important because it sometimes happens that most deserving candidate gets very low salary and the less admirable is paid higher. When you think of negotiating about the salary then the question arises as to how to negotiate. There are certain rules to salary negotiation. You should not hurt the interviewer nor you should show your upper hand as these things gives you a negative mark in the interview.