IMPHAL, Sep 9: The All Manipur Students’ Union will organise a free special coaching course for Class X and XII students at Johnstone Higher Secondary School .Classes will start from the 20th of September, English, science and maths subjects will be coached, a release by Dipanjit Ningthojam HRD secretary of AMSU stated. Details can be had from Johnstone school or from the AMSU office.