Google is not very strict on six month rule even if you are from India. As long as your content is good it does give approval.
Also applying through blogger does not ensure quick approval - Google gives approval only if the content is good. (Google has the same yardstick whether you apply through your website, hubpages or blogger).
So what matters is good quality content. I am seeing you are already having seven hubs and a member of HP for about six months. Enhance your content with may be about 10 or more hubs and then apply. You should be through.
Google is now following two step process for Adsense approval. So it won't hurt if you apply for Adsense straightaway (as you have fairly decent content) - by the time it reviews you can enhance your content and should get approved.
Hope this helps.