Transfer of withdrawn H1B petition

Hi

My H1B was approved by USCIS on sept 2011 under Advanced degree quota. I can to India in Jan 2012 for stamping in INDIA and Mumbai consulate refused h1b.

Now in July my employer withdraw my petition and has been approved by USCIS.

 

Question is can I transfer this petition to another employer under cap exempt ?

 

Also what are te proofs I need to submit to new employer.