NLP along with Machine learning can be used to make machines understand and analyze the human language. Machine learning for NLP helps data scientists to bring usable data and insights from unstructured data like text.
NLP in machine learning has a lot of applications like
Spam classification: In Gmail, to automatically classify spam emails and sent them to spam box.
Twitter Sentiment analysis: When a new product is launched, to know the reviews are positive or negative for that product.
Language Translation: Google uses NLP to translate the text from one language to another.
Text Summarization: To summarize the total passage into a few lines.
Auto-correction: Google uses NLP to auto-correct the wrongly spelled words.
Chatbot: Many banks use NLP to build the chatbot to interact with the customers.
NLP is a great technology to go with enroll in NLP Course in Chennai to get trainined for it by experts.
You can more about NLP in machine learning from this video on NLP with python: