No matter how hard we try, we can never make the perfect vehicle, so there is no end to how much one can spend on R&D. It will run into thousands of crores. Making a vehicle safer is not a one shot thing. It entails making the cells more reliable, packing them more efficiently, having the right balance between the battery and the motor and then having a terrific BMS with adequate thermal management processes. So it will all happen parallely. Over the next few years, India will also begin to make its own cells which is a highly cutting edge industry with a very steep learning curve. So the investment in R&D in EVs and the entire ecosystem as a whole in the next few years will be worth billions of dollars with safety accounting for a prominent chunk of it.