Anirudh stays in New Delhi. His basic salary is Rs.10,000 p.m., D.A. (60% of which forms part of pay) is Rs.6,000 p.m., HRA is Rs.5,000 p.m. and he is entitled to a commission of 1% on the turnover achieved by him. Anirudh pays a rent of Rs.5,500 p.m. The turnover achieved by him during the current year is Rs.12 lakhs. The amount of HRA exempt under section 10(13 A) is-