Data comes as the domestic automobile industry faces a crippling slowdown in demand NEW DELHI: India’s passenger vehicle sales slumped 23.7 percent in September — the eleventh straight month of declines — amid one of the worst slowdowns seen in the auto industry, data released by an industry body showed on Friday. Passenger vehicle sales dropped to 223,317 units in September, the Society of Indian Automobile Manufacturers (SIAM) data showed, while passenger car sales dived 33.4 percent to 131,281 units. The data comes as the domestic automobile industry faces a crippling slowdown in demand that has led to production cuts and thousands of job losses.