Hi Abhirup,
PMP is a certification that states that you should be competent in managing and delivering projects according to PMI's PMBOK framework, and should provide current and future employers with a level of comfort as to your ability to deliver projects successfully. PDU's are merely the PMI's internal vehicle for ensuring your certification is still current, and demonstrates to future employers that your PMP certification still carries the required level of relevance in todays continuously changing times. Employers will never see your PDU status, but only whether your PMP certification is still in good standing or not.
I would therefore work out a plan to obtain the required 60 PDU's over the next 36 month period, but use the PMP certification as a credential when applying for new assignments. if you are looking for career advancement, I would visit some of the major job listing sites and search for positions requiring your skills and experience and which specify PMP certified applicants only. You should find some good assignments, with the commensurate increased remuneration to match your newly acquired PMP certification, and then the responsibility is on you to convince them you are the best candidate and to then go and deliver successful projects.
Regards