Southern Railway — Question based on fine imposed by the authority

Sir/Madam
Since being new to this situation, I would like to put forward a question based on railway fine imposed by the authorities. A person is caught on the railway platform without platform ticket, how much fine that person has to pay the authorities?? Its understood that person was wrong but not on purpose ... they have told me they were there in front of the entrance to ask whether im allowed to go inside but i havent seen them over there at that time ! I came to know its not allowed to go to station because of pandemic situation. But i only took few minutes because i had to give certain medicines to my brother who forgot to take with him . He couldnt come out because he hd lugguages inside so taking a risk might the train to take off ! I had talked to the person in charge who held me there and told me to pay fine . But he refused to hear what i had to say . And gave me a fine of 350 rupees . I want to know the genuinity of the fine imposed on me, Because when i searched on google i came to know 250 is the fine . Im attaching the bill for reference