Indian Railway Catering & Tourism Corporation [IRCTC] — insufficient and unhygienic food in shatabdi

I use to travel in shatabdi express from howrah to bhubaneswar and i am also traveling today (11 december 2018, c10 15). Schedule departure is at 14:25 pm. The irctc catering services use to provide the food. Today i have got 1 litre water bottle after departure of the train. Then around 15:30, i have got one small samosa, one bundi laddo (That also small), one small pack of salty ground nuts, and tea. Now at 7 pm, i was hungry and getting stomach pain for that. They will not serve any soup. Since the train is shatabdi, i did not have option to buy and take food. I requested to provide any food to get relief from hungry and it's pain, they simply denied.
There is chance to get easy digestive food that i think horrible to mostly old people and them who use to take digestive and healthy food. The current menu is not hygienic.
In the dinner, we will have only paneer or chicken with rice/roti.
1. Irctc has reduced the items that results insufficient food in snacks and lunch/dinner.
2.in these kind of trains like shatabdi and rajdhani, passengers are forced to travel with hungry.
3. Irctc should facilitate to buy food so that passengers can travel with sufficient food.
4. Based upon the record, irctc should change the service provider.
5. If irctc will not able to feed the passengers in shatabdi and rajdhani, they should inform the same so that passengers can board with food.

Thanks.