Gremlin is graph traversal language which can be used in our project to store the data of graph.
It basically has vertices and edges which can have different atrributes.  
We can assign weights to edges and data to vertex and can fire queries depending on data we want.

reference:https://github.com/tinkerpop/gremlin/wiki
after installing gremlin-1.3.zip (https://github.com/tinkerpop/gremlin/downloads) 
run the ssh file 
:)