Irctc — Price rate of food

This is vikas one of the passenger of special ac suvidha train. I have covered journey on 20.11.15 train no.00863. My complain is about rate and quantity of the food provided by the catering service. The catering staff are not providing as per railway list. They are also taking rs.100 instead of rs.50 for the lunch. When ask for rate list and item they took a name khan. Please clarify how corruption in railway may remove. Upto which time public will pay extra price instead of exact price. They are taking just double. Please ensure me after verification. Thanks