A relative of mine has travelled in this before and a mini lunch used to be served then, a packet of Veg Biryani and Raita.. I guess same is followed now..
Reg fare.. it's a unique fare system adopted by Railways for SBC-MYS sector to improve patronage.. even though up and down fares are same.. breakup will show that catering charge is levied on SBC-MYS sector.. return sector only a Juice is served I think