How to calculate Night Duty Allowance ?
Night Duty Allowance is granted to Govt Employees who work in Night Shift – Calculation of NDA Hours is counted from the hours duty performed in Night Shift from 10.00 PM to 6.00AM.
Night Duty Allowance – Weightage of 10 minutes for every hour of duty performed between 22:00 Hrs and 06:00 Hrs will be taken for calculation of payment of NDA.
GOVERNMENT OF INDIA
MINISTRY OF RAILWAYS
RAILWAY BOARD
S.No.PC-VII/95
RBE No. 36/2018
No.E(P&A)II-2017/HW-1
New Delhi, dated  08.03.2018
The General  Managers/CAOs,
All Indian  Railways  & Production  Units.
Sub:-Revision of  the rates of Night Duty Allowance (NDA) –
recommendations of 7th Central  Pay Commission.
Please  refer  to Board’s  letter No.  E(P&A)II-2008/HW-2,  dt. 16.12.2008  (RBE N0.199/2008)  as amended  from time to time regarding revision  of rates of Night Duty Allowance (NDA) during 6th CPC period.
2.      Consequent  upon  the  decision  taken  by  the Government   of  India  on  the recommendations  of the 7’11 CPC, the President is pleased to decide that the hourly rate of NDA shall  be  equal  to {(Basic  Pay+Dearness Allowance)/200} which would be admissible to eligible categories of  non-gazetted  Railway Servants  classified  under chapter XIV of the Railway  Act, 1989 read with  the Railway  Servants (Hours of Work and Period of Rest) Rules,  2005 for work put in during the period from 2200 hrs to 0600 hrs.  The  rate  should  be  worked out  separately  for each  employee.  The  present formulation  of weightage  of 10 minutes  for every hour of duty performed between  the hours of22:00  and 06:00  would continue.
3.  The grant of NDA shall be subject to furnishing of  a certificate by the supervisor concerned that Night  Duty is essential.
4. The revised  rates  of NOA  shall be admissible  with effect  from the  15th of July, 2017.
5. These  orders  would  be  subject  to  modification,   if  any, after  the  issue  of instructions  by the  Nodal  Ministry  i.e. Ministry  of  Personnel,  Public  Grievances  and Pensions (Department  of Personnel  & Training).
6.       This  issues  with  the concurrence  of the Finance Directorate of the Ministry of
Railways.
7.       Hindi version  is  enclosed.
(Salim  Md.  Ahmed)
Dy.Director,  E(P&A)II
Railway  Board
The hourly rate of Night Duty Allowance is calculated through this approved formula
NDA hours calculation
Night Duty Hours for Duty Performed from 2200 Hrs to 0600 Hrs is 80 minutes.
For 6 Days a week 6 x 80 Minutes = 480 Minutes = 8 Hours/ Week
The payment NDA for 8 Hours
If the basic Pay = Rs.41000
DA @ 7% = Rs. 2870
So the
Hourly Rate of NDA = 41000 + 2870 / 200
= Rs. 220 / Hour
For 8 Hours = Rs. 1760