Thank you for sharing your experience with ordering food on the Sainagar Shirdi - MGR Chennai Central SF Express. It's unfortunate to hear that the local vendors provided wasteful and tasteless food during the journey. Your suggestion to opt for the food available at Daund station, such as chapati and subji or vegetable biryani, seems like a good alternative. It's great to know that you found it to be value for money. This will definitely be helpful for fellow passengers traveling on this train.