Indian Railway Catering & Tourism Corporation [IRCTC] — overcharging by catering boys in train

I travelled in 17230 from sc to srr on 26-10-18 and now i'm travelling in 17229 from cbe to sc on 28-10-18. The catering services are of very poor quality on board and they are selling it at higher cost not abiding to the menu prices. They are selling tea at rs10/- each cup with lesser quantity and quality, whereas the menu shows it's only rs7/- each cup, when asked about the same they are behaving rudely.
Kindly take necessary and appropriate action against them and kindly inform us.

M r rakesh
Pnr-[protected], tr no-17229
Pnr-[protected], tr no - 17230