Info about bus from Mattuthavani

Hello, I am travelling from Madurai to Bangalore on Sunday and I have a question about local buses. When I searched in the TNSTC website it has options for sleeper type buses but I wanted to ask if there are normal seat (sitting only no sleeper) buses available from Mattuthavani. If yes, are they readily available when I reach the bus stand or do I have to pre-book. I will reach Madurai tomorrow evening so I am currently planning to buy tickets when I reach tomorrow evening. Ideally I want to reach Bangalore by evening so want to leave Madurai in the morning. Thank you.