Is it worthwhile to pursue a PhD degree in Mathematics? What can one do with a PhD degree in Mathematics? These or similar type questions or thoughts are faced by every research student at some time throughout their research career. In the present scenario, one can see the mathematical sciences are present in almost every facet of modern life. This science has also supported so many useful modern skills, like- Internet search, medical imaging, computer animation, numerical weather predictions, and all types of digital communications etc.