India News : Mumbai: Internationally renowned economist Raghuram Rajan will take over as RBI Governor today and plunge straight into a fire-fight situation as the country battles a rapid fall in rupee, high inflation, low growth and burgeoning current account deficit (CAD).br br 50-year-old Rajan, a former chief economist with the International Monetary Fund (IMF) who was economic advisor to the finance ministry, will takeover a difficult assignment from Duvvuri Subbarao on his completing five years in Mint Road.