Domain registration refers to the process of registering a unique domain name for a website or online business. A domain name is a string of characters used to identify a website on the internet. When you register a domain name, you obtain the right to use that name for a specified period, typically one year. 

Domain registration is done through a domain registrar, which is an organization that is authorized by the Internet Corporation for Assigned Names and Numbers (ICANN) to register domain names. The domain registrar allows you to search for available domain names and then register them for a fee. 

Once you register a domain name, you become the owner of that domain name and have the ability to control its settings, such as where the website is hosted and how email is handled. It's important to choose a good domain name that is easy to remember and relevant to your website or business. 

Domain registration in Kerala, India can be done through various domain registration companies that offer their services online. Some of the popular domain registration companies in Kerala are: 

HostGator: HostGator is a popular domain registration company in Kerala that offers affordable domain registration services. The company offers a wide range of domain extensions such as .com, .in, .net, .org, .biz, .info, etc. 

GoDaddy: GoDaddy is a well-known domain registration company that provides domain registration services in Kerala. They offer a wide range of domain extensions, and their registration process is easy and straightforward. 

BigRock: BigRock is another popular domain registration company in Kerala that provides domain registration services at affordable prices. They offer a wide range of domain extensions and have an easy-to-use website builder that allows users to create their website quickly. 

Bluehost: Bluehost is a leading domain registration company that provides domain registration services in Kerala. They offer a wide range of domain extensions and have an easy-to-use website builder that allows users to create their website quickly. 

Namecheap: Namecheap is a popular domain registration company that provides domain registration services in Kerala. They offer a wide range of domain extensions and have an easy-to-use website builder that allows users to create their website quickly. 

These are just a few of the popular domain registration companies in India. It is essential to choose a reputable and reliable domain registration company that offers affordable services and excellent customer support.