The cost of hiring a React Native developer in India can vary depending on factors such as the developer's experience, the complexity of the project, etc.
Developers in India are much cheaper than in any other country in the world.
The hourly rates for senior React Native developers in India can range from $20 to $50 per hour.
Many of the Software Development agencies in India offer services like Hire Dedicated React Native Developer for $10 per hour.
Some companies in India allow you to choose the candidate from their already employed full-time employee on monthly basis.
This option is much better than hiring a freelance react native developer because agencies are more reliable than any single individual offering freelance service.
More detail on the hiring rates of React Native Developers is available here.