Mr. Pankaj, a salaried employee, has taken a house on rent of Rs.12,000 p.m. which was sub- let by him for Rs. 15,000 p.m. He has incurred miscellaneous expenses in relation to sub-let of the house of Rs. 1,000. How much income from the sub-letting of house shall be taxable in the A.Y. where the house was taken on rent and also sub-let by him from 1st April onwards *