Please start a special AC economy class in that is an AC chair car excluding food and other charges in Shatabdi.
Like in Garib Rath the AC chair car Fares are very less. The fares for AC chair car for Nizamuddin/Delhi Garib Rath is only Rs.552 for 1366 kms.
So, on similar basis, the fares for AC economy class for Shatabdi can be made at around Rs.200.
Thanks.