One of my friend does not want to keep his registration, will I be able to register it.

yes, this is another source for domain registrations – expired domains.
When somebody register a domain, think of it as a rental, assuming there are no legal or trademark issues with the domain name, he/she is free to use it as long as he/she continue to pay the yearly fee. Now a days you can also register in advance as many as 10 years). Some people register domains as speculators, hoping that they can later sell them, while others may have planned to use a domain and never had the time. The result is that domains that were previously registered regularly become available for registration again. If you wish to register an expired domain you pay the same fee as you would for a new registration. You can also get from your friend, as it expires, you just register with your own name.