India's SBI Cards and Payment Services posted a first-quarter profit rise on Friday, helped by a drop in provisions for bad loans as asset quality improved.Backed by the country's largest lender SBI, the credit-card firm said its profit ?after tax ?rose 19.5% ?to 6.64 billion rupees ($68.76 million) for the quarter ended June ?30Card spending rose as demand for credit remained strong after picking up in the second half of the previous year, driven by higher corporate spending and steady momentum in the retail segment, in ?line with analysts' ?expectations.Total revenue from operations rose ?3.4% year-on-year ?to 50.41 billion rupees,…