Dearness Allowance: DA and DR are revised twice annually based on the All-India Consumer Price Index (AICPI) formula as prescribed under the 7th central pay commission. Today, we explain DA merger and why the issue is in focus now. Dearness Allowance: DA and DR are revised twice annually based on the All-India Consumer Price Index (AICPI) formula as prescribed under the 7th central pay commission. Today, we explain DA merger and why the issue is in focus now. by Soban News (international And National News)