Indian police said on Saturday they had charged senior executives of Amazon.com’s local unit under narcotics laws in a case of alleged marijuana smuggling via the online retailer. Police in the central Madhya Pradesh state arrested two men with 20kg of marijuana on November 14 and found they were using the Amazon India website to order and further smuggle the substance in the guise of stevia leaves, a natural sweetener, to other Indian states. State police said in a statement that executive directors of Amazon India were being named as accused under the Narcotic Drugs and Psychotropic Substances Act due…