First Additional District and Session Judge N Narasinga Rao yesterday also slapped a fine of Rs one lakh on the convict - Andavarapu Appa Rao.
Appa Rao, resident of Devarapalle area here was convicted under section 20 (B) of the Narcotics Drugs and Psychotropic Substances Act.
Rao, who ran a tea-stall, was arrested by Devarapalle Police for smuggling around 40 kgs dry ganja in 2015.