Need a 30ltr per day giving cow

For a thirty liter cow, look at high-yield HF cross or Jersey cross first. Pure indigenous cows usually will not stay at that level. Check milk in your presence, do a CMT test on all four quarters, ask which month of lactation she is in, and inspect body condition and age. If you want steady thirty liter supply, one cow is not enough long term; you need two cows with staggered calvings. For any cow above fifty thousand rupees, take a Pashumitra or vet along.