For each scheduled employment variable, Dearness Allowance has been fixed by the government. The VDA will be a certain amount, which is calculated on every increase in the consumer price index over and above a fixed base index. It may be Rs. 24 for every increase in the CPI above 130 points, or similar. If the CPI is 167 (new series) for your district, then the VDA will be 24 X 37 (i.e., the point of increase in CPI over 130 base index), Rs. 888 per month. Different VDA is also fixed for daily rated workers. There are two indices, new series and old series. Some firms take the DA on the old series, whereas some other firms take DA on the new series of CPI. Find out the practice being followed in the seafood exporting industry and follow the practice. For DA, please refer to the Minimum Wages notification in respect of your industry and for CPI, contact the Bureau of Economics and Statistics. The Chamber of Commerce used to publish CPI of all the districts in Kerala on a monthly basis. You can contact them also.
Regards,
Madhu.T.K