The Indian rupee’s plunge this week to record lows will have surprised no one. After all, the currency has been inching towards this for weeks, propelled by the government’s paralysis on vital reforms and tax wrangles with big foreign investors. These are leading to a drying up of FDI and accelerating the exodus from stock markets. Industrial production and exports have been falling.  High oil prices have added a nasty twist to that cocktail. If the euro zone noise gets louder, a balance of payments crisis may loom. The rupee could fall further to 56 per dollar, most analysts predict.