How do I register my kindle fire? - Amazon Kindle Fire HD

FCRA or Foreign Contribution (Regulation) Act 2010 is an optional registration certificate for NGO/ Charitable organisations/ trusts, societies and Section 8 companies. FCRA registration for NGO/ Society has been introduced to regulate all foreign contributions to a charitable organisation. It aims at providing smart, citizen centric and transparent governance to citizen and organisations in India.
https://www.gsbtaxation.com/in/fcra-registration-in-bangalore

Not familiar with Fire so I found this online:

To buy content and deliver it to your device, you will need to connect to a wireless network and register your Fire tablet to an Amazon account. Registering also allows you to transfer purchases between devices and Kindle reading apps. To learn more about connecting to a wireless network, go to Connect Wirelessly.

1. From Home, swipe down from the top of the screen and then tap Settings.
2. Tap My Account.
3. Tap Register.
   • If you already have an Amazon account: Enter your Amazon account information, and then tap Continue.
   • If you do not have an Amazon account: Tap Start Here, and then follow the instructions to set up a new account.