Pfizer today reported a 84% increase in net profit at Rs 24.77 crore for the first quarter ended February 28, 2006 when compared with Rs 13.46 crore in the quarter ended Febraury 28, 2005.According to a release issued by the company to the BSE today, total income increased to Rs 158.04 crore from Rs 141.67 crore in Q1FY05.