In the Chennai Bangalore Shatabdi express train, the caterer in the morning and evening are good and supply decent food. In the return journey, the caterer in the morning train from Bangalore is pathetic. The food and the service both. However, the caterer in the evening train from Bangalore is good but demands tips from each passenger.
I'd also like to note that the Shatabdi express has always been on or before time . Appreciate the promptness of the department in maintaining it consistently.