towns in "South India". The busines was carried on z96o originally in partnership by three brothers, N. M. R.Th e c-· ommissioner . Venkatakrishna Iyer, N. M. R. Subbaraman and N. M. of E~cess p,ofits R. Krishnamurti. On April 13, 1946, N. M. R. Subba- Tax, Mad.as raman retired from the firm and the share of N. M. R. v. Venkatakrishna Iyer was taken over by a private N. M. Rayaloo limited company N.111. R. Venkatakrishna Iyer & Iyer & Sons Sons Ltd., but the business was, notwithstanding the Shah 1. changes in the personnel, continued in the original name and style. One N. M. R.' Mahadevan (son of N. M. R. Venkatakrishna Iyer)-hereinafter referred to as Mahadevan-was employed by the assessees as the General Manager of the Colours Trading Co. By letter dated April 17, 1940, the assessees wrote to Mahadevan agreeing to pay him remuneration at the rate of Rs. 1,800 per annum and 5% of the net profits of the concern (Colours Trading Company) calculated by deducting from the gross profits of the business, salaries, wages and other outgoings but without making any deduction for capital. By letter dated March 30, 1943, the salary of Mahadevan was fixed at Rs. 3,000 per annum and the commission was enhanced to 12!% of the net profits of the Colours Trading Company. The branch offices were managed by local managers and assistant managers who were paid in addition to monthly salary, annual and special bonus and dearness allowance. The assessees received from the I. C. I. commission at rates varying between 7}% and 12% on different products sold to them. With effect from April 1, 1944, the I. C. I. allowed a special emergency commission of 5% on all dyes and dye-stuffs sold to the a.ssessees. This special emergency commission was increased to 15% on a.II sales on or after March 1, 1945, but was subsequently reduced to 10% on sales on and after September 1, 1946.