Need some corrections in your information. There are 2 Options.
1. We can upgrade to hd box for free but we have to subscribe for platinum hd pack for 3 months. (Total cost will be 1950 Rs including 3 months platinum hd pack)
Or
2. We can upgrade to hd box with rs 450 and we have to subscribe platinum hd pack for 1 month. (Total cost will be 1100 rs includig one month platinum hd pack)