Imphal: In view of the frequent blockades on national highways, the Manipur government has chalked out an action plan for free movement of trucks and oil tankers along the Imphal-Dimapur-Guwahati (NH 39) and Imphal-Jiribam-Silchar (NH 53) routes, officials said on Friday. The plan was chalked out during a high-level meeting of the state government in view of the frequent economic blockade along the highways by different social organisations to press their various demands, they said. Sadar Hills District Demand Committee launched an indefinite economic blockade on the two national highways from August 1 to press their demand for conversion of Sadar Hills into a full-fledged revenue district, United Naga Council has also launched a counter economic blockade from mid-August. (UNI)