New Delhi, Nov. 25 -- After slashing goods and services tax (GST) rates in September, the Centre and states are now gearing up to fix the tax system's next fault line: inverted duty structures. The GST Council has set its eyes upon correcting the anomaly across a range of industries including select railway parts, metal ores and concentrates, as well as products like water pumps, two people familiar with the matter said on the condition of anonymity. The Council will also take another look at textiles, where the duty inversion was partially addressed on September 3, along with fertilisers and bicycles. Inverted duties refer to situations where raw materials are taxed more than the final product, skewing prices and straining working capital....