Your site must have 5-10 original posts. And after that just keep applying. They will reject few times but you keep on applying. After applying for 6-7 times, you'll get approved.
you can do nothing (if you are in india). mine was accepted after 1.5 months (maybe because of Christmas and New Year holidays).
1. Unique and useful contents on a particular keyword
2. Add your site link on your forum signature
3. Ask your friends to visit your site daily.
4. Use plus one button and ask your friends to click on it.
Some other suggestion(s)
1. Google India is very strict about Address. Before asking for review make sure that you have the same address (word by word) in your associated email account, your domain name and in your adsense participation form.
They are rude. They are not going to accept your site with .tk domain (perhaps!) your site looks nice. buy a domain, wait for 6 months and apply.
Google Adsense reply:
We did not approve your application for the reasons listed below. Issues: - Page type --------------------- Further detail: Page type: Your website is a type of website that we do not currently accept into our program. Such websites include, but are not limited to, chat sites, sites that drive traffic through cybersquatting, and sites that use excessive keywords in the content or code of their pages. ---------------------