China's industrial profits fell in March and slowed gains for the quarter compared to the first two months, official data showed on Saturday, raising doubts about the strength of a recovery for the world's second-biggest economy. Cumulative profits of China's industrial firms rose 4.3% to 1.5 trillion yuan ($207.0 billion) in the first quarter from a year earlier, National Bureau of Statistics (NBS) data showed, slower than a 10.2% rise in the first two months.