Dear Srivasthava,
As you know the Indusrial DA from 1.4.2011 onwards is 47.2% for 1.1.2007 scale and 148.6% for 1.1.1997 scale. This was due to the average AICPI of December 2010 (185 points), January 2011 (188 points) & February 2011 (185 points).
Now the Industrial DA will be continued as 47.2% for 1.1.2007 scale and 148.6% for 1.1.1997 scale (no difference). This is the resultant of average AICPI of March 2011 (185 points), April 2011 (186 points) & May 2011 (187 points).
Abbas.P.S, ITI Ltd, PALAKKAD - 678 623.