Last day i was thinking about this screening for the recruitment. Every time commission or NTS conduct paper on the same patron, CA, PA, GK, EDS, etc. What if these tests are conducted quarterly and valid for two years like IELTS, etc? this will save time, money of the commission and candidates. a candidate with result card is allowed to apply for the related jobs and than merits is prepared using academic and test scores. even a database can be prepared by the commission and it get the willingness for the post through email/sms.

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