Plese don't get Panic on my Answers.
You might stop drinking milk.
We will just have a statistical analysis.
How many litres of milk can be a produced by a single Cow?
What is the Shelf life of the produced milk?
How far we can rely that the milk we are drinking in various forms are produced by cow?
If you brainstrom the answers for this questions, you will end up asking lot more questions again. Imagine the population of Chennai, How many Hotels, Coffeedays and Teashops in chennai, How many milk vendors, How many brands. There are times we use to get the Token for getting the milk bottle from the AAvin counter, sometimes due to shortage you will get only one bottle of milk, even if you are eligible for two bottles. but now you will get how much ever you want. Ask How?
I worked in abroad, the water we are using for drinking and other purposes are sea water, which de-salitation and delvered. You can see Hardly a 100 to 200 cow in the hole Muscat that too it can survive only a place which is 1200kms far from the city. But all the people are having milk, curd and milk related products including milk sweets. How they able to produce so much of milk with a scarcity of good water and cows? It is purely a desert.
What im trying to say is that which ever the company it may be in Tamilnadu, the milk is added with so many bonding agents, which will help to produce more milk, with thick quality and longer duralability. Close your eyes and ears and dont stop drinking milk, Coffee or Tea.