.htaccess redirect GET parameters and PDFs -

i have few links old site - asp files parameters in querystring - wan them redirected new wordpress site.

for example

http://www.example.com/admin/m_sito/sample/down.asp?file=catalogue_de.pdf http://www.example.com/wp-content/uploads/doc/catalogue_de.pdf.pdf

here code not working variables in them. ideas?

rewritecond %{query_string} ^file=catalogue_de.pdf$ rewriterule ^admin/m_sito/sample/down\.asp$ /wp-content/uploads/doc/catalogue_de? [r=301,l] 

a little bit improved version of harsh sanghani's answer:

rewriteengine on rewritecond %{request_uri} ^/admin/m_sito/sample/down\.asp$ rewritecond %{query_string} ^file=(.*)$ rewriterule .* /wp-content/uploads/doc/%1? [r=301,l]