How is it possible 1000 Rs = 10 Rs

To Prove 1000 Rs = 10 Rs
Proof:
1 Rs  = 100 Paisas
         = 10 paisas * 10 paisas
         = 0.1 Rs * 0.1 Rs
         = 0.01 Rs
         = 1 Paisa

So.

1 Rs is equal to 1 Paisa so 1000 Rs is equal to 1000 Paisa that is 10 Rs thus Proved...
source: apkraja