we append new (user) input which is previous not present in nlu.md files and to which bot is unable to interpret
@Ajinkz, I am not sure what you mean here, but if you need to add some examples of a particular intent all you need to do is add those examples to the nlu data and retrain you model. If you need to add a new intent you do that in the domain file and then add the related stories and the exaples in the nlu data.
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