Baby not eating food and putting out.

My daughter's age is 10 months. She uses to take solid food (paste of rice , dal along with vegetables) for 2 times and another two times she uses to have like cerelac / oats/Dalia/ soji. It was all fine but for last 10 days she is not taking food and keeps this in her mouth and puts the food out from the mouth. Even we tried to change the taste of the food with some different vegitable that we put in the grains but no hope. Even she is not interested in drinking water. Could not understand on why she is not eating her food , she is having low weight as per her age with a weight of 6.9 Kg. Because of this her weight also got decreased. Not sure if this is because of not drinking water a lot. She takes water 100 ml in a day. Please help.