If you have invested in National Pension System NPS then by using the NPS missed call service you can know your account balance, all you have to do is just give a missed call from your registered mobile number.
NPS Missed Call Account Balance
Give a missed call to 9212993399 from your registered mobile number.
Upon 2-3 rings call automatically disconnects and you will get an SMS that states the account balance of NPS and Mutual funds of Kfintech.
NPS missed Call account balance service is free of charge for its customers.