How Long it could take to get indexed in google and other search engines please let me know for fast results
nobody can get you an exact time. but eventually they would find your site. to expedite the process you can do some submissions to high traffic sites e.g. digg etc.
It does seems your website somehow filtered. You could see it yourself by type domain Wallpaper.tl direct at Google and see it did not rank in first page results, not even top 10 but other pages contained your name comes up instead.
extension dont make much different, it all about how good your SEO. SUbmit your sitemap and buid quality strong link is the way to get indexed fast
I think you're wrong. With good SEO .info can reach top ranking in Google SERP. It has been proven in SEO contest in my country, .info being the champion beats .com and .net For TS, try to improve your seo skill for better result.............