I want to buy a cow

For dairy, look for Sahiwal, Gir, HF cross, or Jersey cross. First milk her in your presence, then do a CMT test on all four quarters, ask the lactation month, and check age and body condition. If the price is above fifty thousand rupees, take a Pashumitra or vet with you before paying. If you want fifteen liters consistently, one cow is not enough; plan two cows with staggered calvings.