The survey was tabled in the Parliament Friday by Finance Minister Arun Jaitley.
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According to the economic survey, the AUM under the NPS witnessed an increase from Rs.48,136 crore as on 31, Mar 2014 to Rs.72,000 crore as on 31, Dec 2014.
Till 31 December 2014, a total of 79.71 lakh members have been enrolled under the NPS.
The period under review also saw the foreign direct investment (FDI) limit increased to 49% from 26%.
The central government by an ordinance last year hiked the FDI limit in the insurance sector to 49% from 26%.
According to the survey, barring two states, all other states have since come under the ambit of NPS.
The NPS which was initially introduced for the new recruits who had joined central government service (except armed forces at first stage) with effect from Jan 1 2004, has been subsequently extended to autonomous bodies, state governments, and the unorganised sector.