Delete multiple features easily in QGIS?

I have a vector layer being rendered in QGis.

I want to delete various features in the layer. I'm currently deleting each node by selecting the node through node tool and then pressing the delete button.

But I want to delete very large portions in the map. Using this method will cause a lot of time.

Is there any other method where I can draw a polygon around the feature which needs to get deleted and delete them easily ?

Answer

Use the select tool (either select by rectangle or select by polygon) to select the features you want to delete. Then you can delete all of them by hitting the delete button on the tool bar.