Airport cab options

Hi All! I'm staying in Madurai for a day and looking for reliable cab options for airport for tomorrow. I checked MMT and it shows 1400 approx for 11km, Savaari shows 700+toll and parking, Rapido cab shows 250 though (which sounds fair but strange compared to the rest). What are some better or reliable options and charges? I would prefer to prebook to avoid morning hassle as I need a cab around 8AM. TIA!