Where is Pluto?

I was teaching this little friend of mine studying in 5th Std. We were looking at Planetary System chapter. In the list of planets we found that Pluto was missing.

Our little friend, asked me "Do you know why they do not have Pluto listed now?"

I vaguely tried to recollect the news where they said Pluto has been removed from the planets list because of its size...etc.

My little friend disagreed with me and said, "You saw Taarae Zameen Par? Ishaan for multiplying 3 into 9 breaks the 9th planet pluto with earth, right? Thats why!!!"