I have done my Masters in urban and regional planning. Is it worth pursuing PG Diploma in GIS from IIRS?

Indian Institute of Remote Sensing has below criteria for taking admissions to it's various courses:

Courses

Eligibility

M.E./M.Tech

Candidates completed M.Sc in Agriculture/M.Sc in Agri Physics/ M.Sc in Soil Sci./ M.Sc in Agromet./ M.Sc in Entomology/ M.Sc in Pathology/ M.Sc in Agronomy/ M.Sc in Plant Physiol./ M.Sc in Horticulture/ M.Sc in Agric. Botany/ M.Sc in Soil Conservation & Water Manag./ M.Sc in Climate Change Adaptation/ M.Sc in Env. Sci. or equivalent Or B.E./ B.Tech. in Agri. Engg., B.E./ B.Tech. in Agri. Informatics, B.E./ B.Tech. in Agri. & Food Engg. or equivalent, Or B.Sc. (4-years degree) in Agriculture/ B.Sc. (4-years degree) in Horticulture/ B.Sc. (4-years degree) in Sericulture Or Master's in Geography with 55% marks from any recognised university are eligible to apply. Maximum age - 45 Years

Indian Institute of Remote Sensing has courses such as M.E./M.Tech to offer. These courses are in the stream of Engineering.

The overall seats available across all courses offered by Indian Institute of Remote Sensing is up to 60. Good thing to know is that Indian Institute of Remote Sensing has courses which are approved by prominent Government bodies like AICTE.

Download the Syllabus from the IIRSs website & find out the keywords which will match with your CV. You just prepared on that. You should also explore the current achievements of ISRO.

IIRS offers M.Tech course in remote sensing and GIS applications. The eligibility criteria for candidates seeking admission in M.Tech is to have a minimum of 55% in the qualified exam. Or, the candidates with MCA degree along with B.Sc in Science subjects are also eligible to apply.