Minister moots musical toots for noisy Indian roadsIndia is home to some of the noisiest cities in the world, as rickshaws, buses, taxis, weaving motorbikes and private cars fight for space on the traffic-clogged roadsNEW DELHI - India's transport minister is mulling a law that would seek to replace the country's constant car-horn cacophony with the sound of music. Gadkari also said he wanted to replace the "irritating" sirens used by ambulances and police vehicles with soothing tunes. India is home to some of the noisiest cities in the world, as rickshaws, buses, taxis, weaving motorbikes and private cars fight for space on the traffic-clogged roads. India's colourful trucks often have messages painted on their backs aimed at overtaking drivers such as "Horn OK Please" or "Blow Horn". The World Health Organization says noise pollution can cause hearing loss, cardiovascular problems, cognitive impairment, stress and depression.