11 September 2013
REFER CBDT INSTRUCTIONS TO FILL INCOME TAX RETURN
http://www.incometaxindia.gov.in/download_all.asp
TO KNOW HOW TO UPLOAD IT RETURN
http://www.youtube.com/watch?v=byabyM4NVds&hd=1
But please note if tax audit applicable to company mandatory to upload tax audit report online . . Return can be filed online only after uploading tax audit report . . procedure to file tax audit report online can be refered here below