Is there anyway that i can design a digital circuit in Virtuoso Schematic window...
And include the *.v file in the schematic capture window..
Yes. You can create textual Verilog views (File->New->CellView and set the Type to "Verilog" - give the lib/cell/view a name). Then in the resulting editor create the Verilog representation. When you save and exit the editor, it will syntax check the view and then prompt you to create a symbol. You can instantiate this in the schematic.