Cleanliness of AC coaches is excellent in mahamana....And here i think in this survey , if you have added LKO AC SF , then i think ONLY AC coaches are to be considered , NO SL coaches to be considered.
Only the SL coaches are average , but that too , reason for this average cleanliness is Poor and Dumb mind of people travelling in it.
Railway give the train with best maintenance but people don't know how to travel , then what can we do..:)