Union Finance Minister Nirmala Sitharaman on Sunday said fluctuations in the rupee against the US dollar are driven by multiple global and domestic factors, including geopolitical uncertainties, foreign capital movements and India's import dependence on crude oil, fertilisers and gold. She underlined that the Reserve Bank of India (RBI) intervenes only to curb excessive volatility and not to maintain a fixed exchange rate. Addressing reporters at Devanahalli near Bengaluru during a programme marking 12 years of Prime Minister Narendra Modi-led NDA government, Sitharaman said exchange rates were influenced by a range of external developments and market conditions.