Bus rental suggestion

Hi,

Please confirm if there are any bus that I can rent for local sightseeing and pickup/drop from madurai Airport for 24 of us. The tour agents I spoke to said no bus is available and they can give only two 13 seater to Me. Also, Pls Pls help me with the places that I must visit in Kodaikanal. I'll be reaching Kodaikanal by 11am on 27th August and will be departing to Chennai on 29th August at 8pm. So Pls provide me a itinerary.