Earlier, states were limited to drawing only up to 10% of their annual SDRF allocation for heatwave relief under the restrictive "local disaster" provision.
With the revival of southwest monsoon activity showing no signs of materialising not at least until the end of the month, the state is bracing for a prolonged spell of hot and humid weather.
Some of the dead in Bedar in Almeria province were found in vehicles, the regional government said in a statement, revising an earlier toll of six dead.