it's couple of months I've been using SH404SEF With my site. But in my site I'm getting url's in the form: http://www.downloadformsindia.com/Income-Tax-Forms/all-income-tax-return-itr-forms-2010-2011.html?task=view

If I remove this suffix(?task=view), it takes us to the same page.

I had raised this issue in SH404SEF forum, and I was told that this data is taken as parameter by search engines hence ignored.

I want to redirect using RewriteMatch in .htaccess all such url's to the url's without ?task=view ones : ....downloadformsindia.com/Income-Tax-Forms/all-income-tax-return-itr-forms-2010-2011.html?task=view

to be redirected to

http://www.downloadformsindia.com/Income-Tax-Forms/all-income-tax-return-itr-forms-2010-2011.html

So my question is: Will this redirection create 404's in the Google webmaster. I've thousand's of pages in the site