DA Hike Calculation: Central government employees and pensioners are expecting a Dearness Allowance (DA) or Dearness Relief (DR)hike soon. The Union government revises the DA twice a year, in January and July. The DA is calculated based on the Consumer Price Index for Industrial Workers (CPI-IW). An increase will benefit thousands of central government employers. With the upcoming DA hike, how much will the salary of central government employees increase? Check full calculation here