La. R.S. 33:193

The governing body of each municipality may order a consolidation election upon its own motion. Upon the presentation to the governing body of a petition, signed by twenty-five per cent of the qualified voters of the municipality, requesting a consolidation election, the governing body shall order such election. In the event of the failure, refusal, or neglect of the governing body to comply with such a petition within ten days after its presentation, any two of the qualified signers of the petition may apply to any court of competent jurisdiction for a writ of mandamus or other appropriate remedy to compel the governing body and its members to comply.