Microsoft has already given indication of releasing date of Window 8. It may release on October 2012 before holiday season shopping starts but if you urgently need your system then you have one choice.
You can buy new genuine Window 7 PC with a valid Windows 7 OEM Certificate of Authenticity and product key before January 13, 2013 and you will be eligible for special offers by Microsoft. So, whenever Window 8 will be released, you can upgrade your Window 7 System to Window 8 in just 699 Rs. Isn’t it Great?
To avail this offer, you need to register yourself to https://windowsupgradeoffer.com/ website. You can check out more information at https://windowsupgradeoffer.com/en-US/Home/ProgramInfo.