Which of the following is/are source of moality related data:

Ans: d. All of the above The SRS is a dual-record system, consisting of continuous enumeration of bihs & deaths by an enumerator & an independent survey every 6 months by an investigator-supervisorSince the introduction of this system, more reliable information on bih & death rates, age-specific feility & moality rates, infant, under-five & adult moality etc. have become available.The act came into force on 1 april 1970, The act provides for compulsory registration of bihs & deaths throughout the countryThe time limit for registering the event of bihs & that of deaths is 21 days uniformly allover India