SBI Cards and Payment Services reported a 75% year-on-year rise in net profit to Rs 778 crore for the September quarter, driven by a sharp decline in credit costs and improvement in asset quality, even as corporate card spends contracted and outstanding receivables declined. The company had reported a net profit of Rs 445 crore in the corresponding quarter last year.Total income increased 3% year-on-year to Rs 5,302 crore from Rs 5,136 crore.