Fat and SNF
Narendra,
the price depends on % of fat and SNF, HF cow milk will have 3.5 - 4.2 % fat and around 8 % SNF, the price at 4% fat and 8% SNF will be between Rs. 17 to Rs. 18 if you are selling to dairies, if you have a pickup point at your dairy you will get a dairy bonus of re.1 per liter and if you are selling it to co-operative society you will get a bonus of 2 rupees per liter
the price will also depend on the proximity of the farm to a city, if you are close by you will get higher price