Creating a blog is very simple but before that you should know what actually a blog is and what you require to create it.

A blog can be a description of your website or just a show of your knowledge on some specific topic.

Well after knowing what is a blog, we should know about the requirements.
Now , I have got a good news that there is no requirement of anything, other than your time and a working internet connection.

If you are a beginner and you are creating your blog just for fun or for killing your time then I will suggest you get a domain for free from any blogging website like blogger.com or blog.co.in , there are a lot of them in the web, you can do that by creating your account,
and if your are serious about your blog you can get your own domain at a meagre cost and maintain it, it would cost you around 20 $ a year, but that should not be any problem cause once your blog becomes famous you get paid, it is something around 2 $ for every thousands visits to your page.

So that's all i can help you, if you have any further querries you can use the comments.
Instead I would suggest that you yourselves go and venture into web and learn new things cause nothing is better than experience, only your experience will make you a successful blogger

Happy Blogging..............!!!!! :)