MUMBAI, JANUARY 28: Colour-chem reported a 164 per cent jump in net profit to Rs 3.76 crore during the third quarter ended December, 1999, thus taking the profit figure for the first nine months of 1999-2000 to Rs 18.82 crore.The company's net sales for the third quarter increased by eight per cent to Rs 65.76 crore, buoyed by double digit increase in the sales of all its divisions except fine chemicals.