Free 3 years autocad software 2015 (student version)..........

Autocad is very useful in now days like 2-D or 3D of mechanical elements,electrical chips and civil construction
Autocad software is not free but it gives to students free for 3years
1.first register here http://www.autodesk.com/education/free-software/autocad
2.after active your account and sign into your account
3.log into http://www.autodesk.com/education/free-software/autocad
4.select autocad software then obtained key and serial number then download software ........
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