I buy my groceries from Flipkart & Jio, as they come with lucrative offers. FK gives 3.2% . JIO gives you Onions at 5 INR. If you use Cashback Cards of Axis or SBI, you get 5% Cashback for your purchases. There are even Debit Cards which offer Cashback ! A penny saved is a penny earned, prescribed for frugal living. !