How to define synonyms in rasa nlu

Hello Friends, Can someone tell me how to define synonyms in Rasa NLU i.e. in file. I tried to define entity synonyms in a way that is mentioned in Rasa documentation. I trained the model and ran the model. But it is not picking synonym as entity. Here I attached my file and nlu_config.yml file as well.

I attached screenshot of example i ran the model for.

nlu_config.yml (43 Bytes) (1.3 KB)

I am trying to search for a Desi spot. which I trained the model as an synonym for entity indian. But it is not mapping it to entity.