1. Don't be in a hurry to negotiate salary at interview
Agreed that one of the reasons why many of us change jobs is to get a good salary hike. Whilst both you and the prospective employer might be keen to discuss salary at interview, don't bring it up initially.
If you're asked what salary you expect simply state "The details can be worked out at a later stage".
2. Be Prepared
You have excelled in the interview, you've being considered for the job, and now you're down to negotiating the deal. To ensure that you get the best deal the best approach is to be fully prepared with reasonable salary expectations based on
Your Market Value: Your worth in terms of perceived value of your ability to contribute which is judged through your experience, training and education that match the requirements of the job.
Organization’s salary structure: Barring a few exceptions, salary structures in most of the organisations are well defined and there is only a limited play available for each grade.
Dynamics of the situation: If you are the only candidate who has got the through the selection process then you have better leverage compared to a situation where the prospective employer has options available.
Market Rates: Salaries being offered in the market for similar jobs in that industry
Your aim should be to reach mutually agreeable terms and have a “win-win” situation.
3. If you are still not happy
In addition to above, you can follow steps given below so that you can have a better offer:
Accept bigger Challenge
Negotiate with the Functional Head along with the Human Resource Deptt.
4. Don’t be greedy
If you decide to join, the relationship with your new employers shall be ongoing. Therefore, focus on the overall package and not on just winning the negotiations.
Even if you have more leverage, asking for an unreasonable package may leave a not very favorable impression on the other side even if you win.
Remember being fair & gentle will give you a confident start in your new job and there will be many opportunities to get promotions & increments as time goes on.