Andhra Petrochemicals Limited posted a 17.89 per cent decline in net profit to Rs 5.69 crore for the second quarter ended September 30, 2012, as compared with Rs 6.93 crore in the corresponding quarter a year ago. Net income from operations decreased 20.60 per cent to Rs 118.74 crore for the quarter, as against Rs 149.55 crore in the corresponding quarter last year.