There are several top chatbot companies in India. However, here are some points that you should consider before hiring a chatbot developer-
Look at their previous work and check if they have a portfolio.
Find out if their clients are satisfied with the company’s chatbots for them.
Try to contact their past clients for references.
Make sure that the company has expertise in chatbot development.
Find out if they have a team of experts who understand your business requirements and can work on all aspects of the project.