At MV(11.30am) itself platform vendors may tell u to buy lunch from them itself as train will reach VM by 3 pm . dont hear to those cheating words . when train is about to reach Chidambaram(12.10pm) go to D2 Coach . at chidambaram station , there is a platform shop which sells tasty and quality lunch food items like Curd rice , Tamarind Rice , Tomato rice , Sambar Rice etc will be sold at 15 rs per packet . u can see train staffs buying from that shop . buy those if u havent brought ur lunch . dont depend on Mayiladuthurai station vendors .