Redirecting main Domain Sub Domanin

Hi,

I am having mysite.com which is not keyword rich domain but since I did lot o paper marketing with this domain, so keep the identity of the Domain of mysite.com, I would like to redirect mysite.com to keyphrase.mysite.com.

my question is will it be advisable to do so from SEO purpose?
How should I carry on with my directory and search engine submission?
Am I suppose to submit every-where, my domain or sub domain?


Please advise me for the same, waiting for an reply


Gurgaon Property- Listing Properties in Gurgaon

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