What is the 'tyre and tarmac' rule recommended by the FRSC when stopping behind another vehicle in traffic?

1. Stop at a distance where you can see the rear tyres of the vehicle in front touching the road surface.
2. Stop close enough to touch the bumper of the car in front.
3. Stop exactly one car width to the left of the lane center.
4. Ensure your tyres are inflated to the exact pressure marked on the tarmac.