Lupin today reported a 109% increase in net profit at Rs 43.15 crore for the first quarter ended June 30, 2005 as against Rs 20.64 crore in Q1FY05.According to a release issued by the company to the BSE today, total income increased to Rs 365.07 crore in Q1FY06 from Rs 294.20 crore in Q1FY05.