CSE's Clean Air campaigners ANUMITA ROYCHOWDHURY and CHIRAG SHAH expose the dirty, intelligent and systematic business of fuel adulteration: The problem: Oil companies refuse to take ultimate responsibility for the quality of the fuel they sell. The government is averse to design tests that detect adulteration accurately. The penalty for adulteration is weaker than ever before. Fuel quality standards remain so lax that adulterated fuels easily pass the test. Warped pricing entices greed; policy legalises it. Adulteration is nothing but state-sponsored crime. The result: Damaged vehicles. Increased emissions. Deadly air in cities. The gain from small improvements in vehicle technology is lost. The hope to leapfrog to ever-cleaner technology is quashed. The answer: Make technology roadmap even more aggressive, to beat pollution as well as adulteration. The corrosive impact of adulteration on new technology will whip up public anger -- as it already is beginning to. And that will force the government and the oil companies to own up, and act