Need help in fillable pdf

Hi Moses98A6,

Hope you are doing well.

Thank you for posting your query here. Please help me with few details to understand your issue better.

1. Make and model of your device?
2. OS version?
3. Does your keyboard support Tamil?

It totally depends on the keyboard you are using. Please do check if the form is protected? If it is 

For more help refer to: https://helpx.adobe.com/acrobat/mobile-app-faq.html

Let us know how it works at your end. If you have any further queries please feel free to reach out to us.

Regards

Ria