Microsoft has been rather aggressive with their software pricing strategy in the Indian market.
Windows 8 upgrades were available for Rs. 1999 for older systems and Rs. 699 for recently purchased machines.
And they have done something similar with Microsoft Office 2013.
The pricing of individual apps in the MS Office suite are absurd. But they have gotten the subscription thing perfect.
Home users can buy a monthly subscription for Rs. 399. Yearly subscription is for Rs. 3999.
This is valid for five machines. This comes to Rs. 2.2/2.7 per machine per day if you actually have five machines that can use this option.
A logical move would be to find four friends who are interested and share the cost. Rs. 800 per year per computer is pretty cool if Microsoft Office is essential to your computing life!