(a) who had rendered not less than 20 years continuous. service and retired prior to 1.4.1257 under the SRPF(C) Scheme 

(b) who had joined prior b 1.4 1957 but retired before completing 20 years continuous service under the SRPF(C) Scheme

 (C) who joined on or after 1.4.1257 but retired before completing 20 years continuous. service 

(d) None of the above 

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