New Delhi, Feb. 5 -- Titan: Titan Company Ltd., one of Rakesh Jhunjhunwala's most significant investments, announced its December quarter results on February 4. The Tata Group firm reported a 5 percent year-on-year decline in net profit, which stood at Rs.990 crore, compared to Rs.1,040 crore in the same period last year. The decline was primarily due to the impact of the reduction in customs duty on gold. The company stated that the inventory losses related to the duty change were fully realized during the quarter, affecting profitability. However, revenue for the quarter saw a robust 23.3 percent increase, reaching Rs.16,097 crore from Rs.13,052 crore in the year-ago period. Margins for the quarter stood at 9.4 percent, compared to 11.2...