Corporation Bank today reported a 29% decline in net profit at Rs 115.07 crore for the third quarter ended December 31, 2005 as against Rs 161.69 crore in Q3FY05.According to a release issued by the company to the BSE today, total income increased to Rs 783.48 crore in Q3FY06 from Rs 772.52 crore in Q3FY05.