You would need to tap into Zoho's Calendar Events API to do that.
There are 3 ways that you can do this:
1. Write your own custom Javascript.
2. Use DataFetcher.com, which is an extension for Airtable that lets you connect to APIs.
3. Use Make's HTTP Module, which let you automate & integrate Airtable with other APIs.
Any of these options would take a while to configure & setup. If you have a budget for your project and you’d like to hire an expert Airtable consultant to help you create this, please feel free to contact me through my website.