The Reserve Bank of India (RBI) has allowed banks to extend export loan maturities and waive some interest charges to exporters affected by last month's [January 2001] earthquake in the western India state of Gujarat. In a directive issued on Feb. 6 to bank chiefs, the RBI said the period for which pre-shipment credit is normally granted can be extended to exporters affected by the earthquake. Overdue credit could be converted into short term loans with the normal penal interest being waived, it