TNSTC is offering bus from madurai to munnar. Most people prefers cars and vans for travel to munnar at their occassion so private travels are not available so far. For TNSTC timings, the below link will help you. http://www.tnstcmadurai.in/timings.html TNSTC Madurai Ltd Note: timings are only for reference. Kindly get a word from bus depot for confirmation.