CPI April 2015 , DA & Date of effect.
Consumer Price Index Numbers for Industrial Workers - CPI(IW) for April 2015 is 256 points, increased by 2 points compared to March 2015. DA as on April 2015 is 117.69% Likely DA as on July 2015 is likely to be 118 % or 119%.
This shows once again retail prices are going up even though the inflation level is at negative figure. The vast difference is there between whole sale prices and retail prices.
Technically it is incorrect to project the percentage of price rise as on 1/1/2016. Hence the date of effect of 7th CPC should be only 1/1/2015 not 1/1/2016.