SRS Cinemas — Not allowing to take the food and water meant for child inside the movie theatre

I went to watch movie in srs cinema in aditya mall ghaziabad . My sister and her 6yrs old child was with me.I was carrying some biscuits and hot water with me, as doctor has asked us to not to give any outside food or water to my nephew. But the guards and the manager itself of SRS cinemas didn't allow us to take the food material and water meant for the child inside the audi and asked us that whenever your child want to eat or drink water come outside and feed him.