Read the following information carefully and answer the question given below.

The sum of the incomes of Anitha and Punitha is more than that of Kavi and Mala taken together. The sum of the incomes of Anitha and Kavi is same as that of Punitha and Mala taken together. Moreover, Anitha earns half as much as the sum of the incomes of of Punitha and Mala. Whose income is the highest?