INDIA, March 11 -- OIL prices have dropped - and dropped fast. A series of geopolitical events has forced the price of crude down at the fastest pace since 1991. On Monday, the benchmark stock indices in India suffered their worst single- day fall, tracking the sell-off in global markets, as crude oil prices crashed owing to disagreements between OPEC and Russia, and fears over the economic fallout of the corona virus deepened further. The benchmark stock indices fell by over 6 per cent, trimming some of their losses thereafter to end the day down 5.2 per cent. The collapse in oil prices has been more severe. Crude oil prices plunged by around 30 per cent in early trading, ending the day at around $35 per barrel, as Russia disagreed on prod...