In QGIS 2.6.1, I have merged two polygon shapefiles. After the merge I am facing a problem at boundaries.
So I thought of changing Polygon -> lines, manually deleting one of the lines at the boundary, and finally change line -> Polygon.
The problem is I am not able select a line between two nodes to delete; the entire polygon is getting selected when I try to select. Is there any better approach to do this?