Tds return

 Dear sir..
while submitting tds quarterly return there are option to write pannotavbl and panapplied.i just want to know that if i quote panapplied even i dont know whether person has applied for pan or not what be the consequence of this.

is there any benefit to person if i write panapplied instead of pannotavbl. any pros or cons of writing pannotavbl and panapplied as i am deducting tds @ 20%.