sir, i have travelled only in mumbai ahmedabad shatabdi exp, i have not travelled in delhi-jaipur route. the experience which i am sharing is of both ac chair car of shatabdi and other express ac chair car[mumbai -ahmedabad route]. and look at the question you have asked--what is the difference between a Shatabdi's Chair Car and Normal Chair Car coaches??? the foodquality will obviously good in shatabdi exp as compared to other express.
thank you