In bihar

For Bihar, a Jersey cross or HF cross is usually the best dairy choice if you have good feed and some shed cooling. If you want a tougher local cow, Sahiwal or Gir is safer in heat. First milk the cow in your presence, then do a CMT test on all four quarters. Ask which month of lactation she is in, check age and body condition, and if the price is above fifty thousand rupees, take a Pashumitra or vet with you.