First of all make dairy farm for cows according to best climate
Buy the best breed of Holstein and Jersey cows according to the Indian climate.
Opening Dairy Farm You can Get Loan from NABARD
Give animals green fodder and nutritious food in proper proportion
To keep the animals healthy by protecting them from disease, get them vaccinated on time
If the number of animals is more, then you can also use a machine for milking
For dairy farming, you can also raise milk goat of good breed.
Dairy farm is the best business option. The demand for milk is increasing continuously.