PMP - Project Management Professional
Project Management Professional is a professional certification offered by Project Management Institute (PMI) of United States, a non-profit professional organization. PMP is the most important and recognized professional certification that indicates the proficiency and competency of a professional to lead a "project".
Government as well as private organizations hire PMP professionals to improve the efficiency of projects. The certification is internationally accepted and may give a career boost to the certification holder.
There is a minimum criteria of education and experience while applying for a PMP certification. For more information on syllabus and certification requirements you may refer the official website of Project Management Institute: http://www.pmi.org