Any citizen of India engaged in research in any field of science and technology up to the age of 45 years as reckoned on 31st December of the year preceding the year of the Prize. Overseas citizen of India (OCI) and Persons of Indian Origin (PIO) working in India are also eligible.

The Prize is bestowed on a person who, in the opinion of CSIR, has made conspicuously important and outstanding contributions to human knowledge and progress – fundamental and applied – in the particular field of endeavour, which is his/her specialization.

The Prize is awarded on the basis of contributions made through work done primarily in India during the five years preceding the year of the Prize. (For this purpose ‘primarily’ will mean ‘for the most part’)

25 May 2017, http://ssbprize.gov.in/Content/Eligibility.aspx