The stations having two lines is called a :

Explanation :

Junction:

•  If there are at least 3 separate routes coming in and out of a station, then a Junction is called. In simpler terms, there should be at least 2 separate routes for trains entering the station to depart. 

Terminal Station: 

• When the trains can enter and exit the station in only one direction, a station is known as a terminus/terminal. In other words, the tracks end in the opposite direction. A train will exit in the same direction as it has entered.

Cantt: 

• Cantonment stations are the stations within the Cantt area of a region. A Cantt is an area of a city where the army or armed forces are stationed. 

Wayside or crossing station:

•  The station has two lines is called a Crossing station. The idea of a crossing station was initially conceived for single-line sections, to facilitate the crossing of trains going in opposite directions so that there may be a more rapid movement of trains.

Flag station:

• railroad station where trains stop only when a flag or other signal is displayed or when passengers are to be discharged Also called: flag stop