The reason why staffs in BIG Operators (ABT, VRL, Sharma) are friendly is they don't feel much pressure from their top management. B'coz top players like sharma vrl and all don't depend their business completely on passengers, they actually mint more money from parcels they load in their buses. You can see sharma,vrl runs about 5 buses daily from ban to mum and vice versa with luggages over their top and in belly. whereas small operators such as national, sangita travels etc with one or two volvos dont do much parcel services and depend entirely on passengers. Thats why they all start lately waiting for even the last seats to be filled. Also the tax the omni buses pay is around 3000 rs per seat for a quarter year. And for the drivers maximum they may get 6000 or 7000 rs per month (I think so!) in che-ban. SRM Travels is a different case as they are not only bus operator but they also own university and other businesses therefore they dont care much about seat filled. As said before SRM still plies mark-2 in che-tvm route and the bus maintenance is great on the otherhand I happened to see paulo mutiaxle volvo running between chennai and goa . People! if any one happened to see it u wont believe it is a volvo which is very sad to look with too many stickers and shivering RVM. In Kpn travels I saw the 2+1 volvo running between Chennai egmore and bangalore lost its right RVM and they fixed a normal mirror in the driver window which is very awkward to see If Akash Passey look at these buses he will cry .