i am having my website on wordpress 3.2.1 ...an i was submitted my sitemap of 13 pages before few months.but i have added 6 new pages in the website..after the completion of the on page of these 6 pages..when i trying to submit the sitemap again of all 19 pages...the sitemap submitted successfully but the new 6 pages not get indexed..the Google displays the result of indexed pages as same as in past i.e 13...i have checked out and found that robot.txt file is inserted in my website which is disallowing the the user agent to sitemap.xml page...so may be the new sitemap is not crawling by the google bot because of that robot.txt file.my client is also having the admin information of the website.so may be they has done that...what is the solution to index my pages....
What do you mean by robots.txt is blocking. If there is any problem in the robots.txt then generate it in webmaster tools or use one in websites such as: http://tools.seobook.com/robots-txt/generator/ And replace it your robots.txt with it. I personally recommend the sitemap generator inside webmaster tools. Add the line Sitemap: http://www.yourdomain.com/yoursitemaplocation.xml in case it is not there. Replace yourdomain.com and yoursitemaplocation.xml with relevant ones.
By default, WordPress doesn't come with a robots.txt file. So it must be something that you've added or your host added. To be honest, you don't need it. If your host requires it, it would already be there. It's not something that you need to add or continue messing with. Especially if you don't know what you are doing. As long as your WordPress site is live, organized, using an SEO plug in and maybe even has a sitemap file, it will get crawled. Quickly. You don't have to keep submitting new pages to the search engines like it's 1990. It's 2012 now. If you want to help the page, link to it. All this other stuff is a waste of time.
You can only delete robots.txt file if you have webhost control panel, Search in your script for robots.txt file and delete it. But if you hasn't control panel info, then go to your wordpress control panel, in edit section find about robots.txt file edit content to User-Agent: * Allow: / and it will allow all robots to index files.