Ever since taking charge as the Union minister for road transport and highways in 2014, Nitin Gadkari had been a relentless crusader for tougher traffic laws. This resulted in the Motor Vehicle (MV) Act 2019 with new traffic regulations coming into effect from September 1. In an interview to Jyotika Sood, Gadkari talks about the new law, protests, heavy fines and centre-state conflict. Excerpts: