Southern Railway — Delay of train without prior notice

Hi there,
I boarded the Lalbagh express (12607) on 11 January 2023. The train started at 3.30 pm from Chennai Central, however the train was delayed by approximately 7 hrs. No prior intimation of the delay was announced and route change was announced. Finally we managed to get some food in Salem and the rain reached Bangalore next day (January 12) 4.00 am.
This is absolutely not acceptable, as we were traveling with 2 kids.
Kindly take appropriate action and arrange a refund for the food expenses and for the inconvenience caused by the Indian railways.
Refund amt:5000