Mumbai, Oct 31 :    Mumbai, Oct 31:  Wipro Ltd, India's largest listed infotech company today announced a 121 per cent rise in its net profit to Rs 261.7 crore for the half year ended September 30, as against Rs 118.2 crore for the previous corresponding period. The impressive profits were on the back of a 39 per cent growth in revenues to Rs 1358.9 crore, as compared with the previous year's Rs 984.9 crore. For the second quarter, net profit grew by 116 per cent to Rs 154 crore as against Rs 71.2 crore in the previous comparable quarter. Revenues during the period stood at Rs 740.40 crore as against Rs 564.6 crore for the corresponding period of last year, a growth of 31 per cent. On the back of impressive results announced before today's trading, the Wipro share gained Rs 133 to close at Rs 2381.80, from yesterday's close of Rs 2248.80. Wipro Technologies, which represents Wipro's global infotech services business, accounted for 56 per cent of total revenues and 88 per cent of the profit before interest and tax. Its revenues increased by 79 per cent for the half-year to Rs 771.9 crore and profit before interest and tax went up by 137 per cent to Rs 256.2 crore. Wipro Infotech, the domestic infotech services and products business, accounted for 29 per cent of revenues and 8 per cent of profit before interest and tax. Wipro Infotech's revenues grew by 13 per cent to Rs 394.3 crore, and profit before interest and tax by 145 per cent to Rs 23.2 crore. A focus on growing the services segment of its business, along with the spin-off of its peripherals business resulted in operating margin doubling from 3 per cent to 6 per cent for the half-year. Wipro Technologies, increased its number of customers. Revenues from north America were 65 per cent, Europe 27 per cent and Japan 7 per cent of its total. The mix for the 1999-2000 financial year was America 70 per cent, Europe 24 per cent and Japan 5 per cent, with the balance coming from the rest of the world.