Ban loudspeakers at religious places like templemosquesgurudwaras etc ban crackers during diwali or allow eco friendly crackers Allow only skin friendly colour during holi 
Religion and devotion should be limited to oneself Its effects should not be imposed on others in the name of secularism 
Actually Sonu Nigam raised a good issue It is just that he told about only one community so people are overreacting at what he said
Please let the country run by common sense instead of religion