AUTODESK SOFTWARE FREE VERSION FOR STUDENTS.
Autodesk is software package which enables the user to create 3d and 2d design objects .
well for Engineering college students could use it for free to design engineering graphics and engineering drawings.
downlaod instructions:
1)http://students.autodesk.com visit the site
2) register yourself with valid E-mail Id and password
3)Mention Appropriate college name.
4)then confirm your Id by the Email link.
5)then the site will show you the AUTO CAD DOWNLOAD LINK
6)Verify that you have system requirements before downloading.
32bit /64 bit windows/mac os/linux
7)start downloading
8)the SERIAL AND THE PRODUCT KEY VERSIONS will be given before downloading.
then have fun guys!
incase of doubt,ask as comments!