Xolo started it back in 2014, now OnePlus India has shared the list of spare parts prices for their devices on their official website. This includes all the supplementary components for all the three OnePlus smartphones and also their accessories. This also includes the labor fee for fixing the part.
As you can see from the image below, the display of the OnePlus One costs Rs. 6530 excluding taxes and the labor fee for fixing the display is Rs. 400. OnePlus is even selling components such as SIM ejector tool and SIM card tray separately. You can check out the all the spare parts prices here.
The company recently launched extended service plans for the OnePlus 2 and OnePlus X smartphones in India. OnePlus asks customers to visit only B2X Service Solutions India Pvt. Limited and Regenersis India centres for any issues. Currently OnePlus has 40 services centres across India. Hope other manufactures follow this.