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Hi Atul, The links from the blog you mention look like automated spam links that could be being generated for a number of reasons. If you have no relationship with this blog and have no way of contacting the webmaster then there might not be a lot you can immediately do to get rid of these links. Since they are going to 404 pages on your site anyway, as I mentioned previously I would not worry about them too much. What I would worry about is what perfect007 mentioned also which is the errors that are appearing on your 404 page. You have many missing images, most if not all of the page's links lead to other 404 pages and your meta robots line is telling the search engines to follow all of these bad links. Your 404 page in short has many coding errors and these errors seem to be making the problem of the spam links worse because for every incoming spam link you have, your 404 page is creating even more bad links for google to crawl. My advice would be to clean up the errors on your 404 page first. That should reduce the number of 404 errors you see in GWT that are being created from your own page. Once that is done you will have a better idea of how many external spam links are being created over time and with that information you may assess your next moves. In the first instance you could change the meta robots line to: Which would at least stop the search engines from indexing the page and following the broken links on it. Hope that helps.

You can always change your .htm pages to .php so everything is consistent.  Changing .htm to .php won't cause any problems. Please note that changing php to htm on the other hand will break the php code (unless you remove the php with a rewrite as donford mentioned.)

If you don't have the authority to access IIS, then your options are indeed limited. But, it may not matter. If it's the homepage root, your homepage may get all the credit for the link equity (including pagerank) instead of the individual file. For example, depending on how people link to you, the authority may actually life on example.com instead of example.com/index.htm. If it were me, I'd likely place both a meta refresh and a canonical tag in the .htm file You may want to add a 10 second delay to the meta refresh, with a message to the user that they are being redirected (you can Google how to do this). This will help prevent Google from interpreting the meta refresh as a sneaky redirect. Not a perfect solution, but perhaps the best under the circumstances!

Atul The duplicate meta data from Google Webmaster Console is for Page Title and Description which is the same on your Paginated Pages. | <title>Hindu Wedding Cards Catalogue | 123WeddingCards</title> | |   | Maybe on Page 2, you change it to: | <title>Hindu Wedding Cards Catalogue - Page 2 at 123WeddingCards</title> | |   | That or something else in the page title which changes on every paginated page. Something similar in your Meta Description. I hope this helps.

I you agree however you must figure out exactly what prompted you to be penalized. And if Google knows that you have the same content on a different domain they will probably not look the other way because they're getting so much stricter. I don't know that but I wouldn't count on Google being kind. What makes you believe you've been penalized? Have you ever received a notice from Google?

This is not hard to do on a with .httaccess I don't know of any value other then it makes the url easier to remember for users. Good luck