With southern states voicing concerns over 'unfair' tax money devolution, Finance Minister Nirmala Sitharaman has said the states have to engage and highlight their concerns with the 16th Finance Commission, whose recommendations will decide how the funds are divided. Population is one of the criteria used by Finance Commissions to decide how the tax revenues are divided. Southern states, which have managed to check the rise in population, feel they get a raw deal when compared to the northern states with much larger population growth. In an interview with PTI, Sitharaman said the central government does not decide on the devolution formula. The devolution of taxes is made in accordance with the recommendations of the Finance Commission and the aggrieved southern states should approach the panel for change in parameters. "It is for the states to engage with the Finance Commission to express their concerns about the parameters based on which the tax devolution principles are laid dow