IIUC:
In [178]: d.pivot_table(index='Cola', columns='Colb', aggfunc='size', fill_value=0)Out[178]:Colb Rippened UnRippenedColaApple 11Mango 01Orange 10

IIUC:
In [178]: d.pivot_table(index='Cola', columns='Colb', aggfunc='size', fill_value=0)Out[178]:Colb Rippened UnRippenedColaApple 11Mango 01Orange 10