B2X Service and B2X Protect are two new coverage options introduced by OnePlus in India.
B2X Service
If you pay RS.999 then when the manufacturer warranty expires you will get additional one year manufacturer warranty.
B2X Protect
It covers accidental, physical, and liquid damage to the OnePlus 2 device. It will provide the service during the first year of purchase. B2X Protect will cost Rs. 1,299.
For details on OnePlus 2 visit: OnePlus 2 Full Specs