Hindustan Zinc today posted a 122% increase in net profit at Rs 1,472 crore for the year ended March 31, 2006 when compared with Rs 661 crore in FY05.According to a release issued by the company to the BSE today, total income increased to Rs 3,993 crore in FY06 from Rs 2,337 crore in FY05.The company posted a net profit of Rs 802 in Q4FY06 when compared with 229 crore in Q4FY05. Total income increased to Rs 1,811 crore from Rs 761 crore in Q4FY05.The board has recommended a dividend of 25% i.e. Rs 2.50 per share of Rs 10 each, the release added.