In what could bring cheers to 50 lakh central employees and 58 lakh pensioners ahead of Diwali, the Centre is all set to announce 2% dearness allowance (DA) to be effective from 1 July 2016. "The proposal to provide 2% dearness allowance and dearness relief to central government employees and pensioners respectively, is listed on agenda of the Union Cabinet meeting scheduled for tomorrow," a person familiar with the matter said.