in article 12 of constitution--other authority

dear sr members,

                      in a decision of madras high court,AIR1954 mad 67---where the gereral words 'other authorities' 'within the territory of india or under control of government of india ' construed.but afterwards supreme court held , it has got larger meaning than the one given by the madras high court. kindly discuss this in a simple way the constitutional interpretation of the subject matter.