India's manufacturing sector output slipped to a seven-month low of 51.2 in September. The Nikkei India Manufacturing Purchase Manager's Index (PMI) — a composite monthly indicator of manufacturing performance — stood at 51.2 in September, down from 52.3 in August.According to the survey, PMI was weighed down by slower increases in new orders and output as growth of new work moderated to the weakest since June, reflecting challenging economic conditions.A figure above 50 represents expansion while one below that level means contraction.Meanwhile, Reserve Bank Governor Raghuram Rajan, on Tuesday, effected a more-than-expected interest rate cut of half a per cent to boost the economy.Moreover, the RBI has also lowered its economic growth forecast for the current fiscal to 7.4 per cent from its previous projection of 7.6 per cent. The April-June quarter GDP slipped to 7 per cent from 7.5 per cent in the preceding quarter.