India is the world's largest producer and consumer of milk. Throughout the world, there are more than 6 billion consumers of milk and milk products. But, still the consumer have not any tool or equipment to detect the quality of milk.
In few places the quality is very poor. For example, I belong to Jabalpur, Madhya Pradesh, India. And, if you see the milk quality of Jabalpur, you can find out that a lot of adulterants are mixed in the milk. So, government should take action to all those dairy responsible for adulteration.