Tata Chemicals has posted a 55% increase in consolidated net profit at Rs 137.38 crore for the quarter ended June 30, 2007 when compared with Rs 88.61 crore for Q1FY07.According to an official release issued by the company to the BSE today, total income has decreased to Rs 1146.35 crore from Rs 1216.65 crore for Q1FY07.On a stand-alone basis, the company has posted a net profit of Rs 121.16 crore for Q1FY08 when compared with Rs 75.35 crore for the quarter ended June 30, 2006. Total income has decreased to Rs 681 crore from Rs 760.06 crore for Q1FY07, the release said.