Golden quadrilaterals connects metropolis cities delhi-kolkata chennai-mumbai and delhi ny six lane super highway main onjective is to reduce the time and distance between these mega cities constructed and maintained by nhai
national highway extreme part of india by cpwd shershasuri marg 1st national highway
district road it connects with district headquarters with the other places of the district by zilla parishad
other roads link rural roads with top town and cities. bought the scheme pradhana mandri sadak yojana that every rural area shld be connected with towns
state highway it connects the capitals with district headquarters by pwd 
boarder roads it is the road which is maintened by governmnet introduced on 1960 constructed on north and north eastern parts which is very hilly this lead to economical devp and easier transport
plzz best