Cummins India is trading at INR 4,036.95, down 15.00%, after September-quarter results missed analyst estimates for revenue and profitability. - Results were reported November 4; the earnings shortfall is the clearest company-specific explanation for the November 5 decline. - EBITDA fell 27.13% year over year, while EBITDA margin contracted to 15.36% from 21.94%. - The company cited commodity-cost inflation, higher freight costs and product mix as margin pressures.