Hi Yuvraj,
I am agree with Trinity-Morpheus's posting. If your work areas are different, then there will be salary difference. But if your work areas are same, then why they have hired new persons?
So the practical solution is that, if you are talking with your MD then first analysis yourself. and then only discuss. Otherwise you will be in problem.
Also try to do post graduation through correspondence and improve your qualification. But till that time do not leave the present job.
My best wishes,
Regards,
Suvarna