Sintex Industries Ltd has has posted a net profit of Rs. 822.047 million for the quarter ended December 31, 2011 as compared to Rs. 1128.144 million for the quarter ended December 31, 2010. Total Income has increased from Rs. 11983.738 million for the quarter ended December 31, 2010 to Rs. 11761.943 million for the quarter ended December 31, 2011.