Question

disguised between real or fake note of 500

Answer 1

A real note of 500 rupee has a Gandhiji's face on the white portion which can only be seen in the light , while the fake doesn't have it!

Answer 2

on real note
1. on silver strip RBI is written which changes color green to dark green if u move.
2. On uppr side where 500 is written should be bulging outward.
3. On green strip right side 500 is written.
4. year in which it made is written .

On fake
these all are not prsnt.