One rare equivalence

It all started with Tagore's song -- "Baje Karuno Sure"

It is based on the raaga Simhendramadhyamam (http://en.wikipedia.org/wiki/Simhendramadhyamam)

Tagore probably borrowed from Carnatic style of classical music where it's a popular scale.

for C it is:    C D D# F# G G# B C

Now I somehow bumped into this scale : Hungarian Minor http://en.wikipedia.org/wiki/Hungarian_minor_scale

http://en.wikipedia.org/wiki/Gypsy_scale

For C: Gypsy scales are: C D Eb F# G Ab Bb/B C

Now lets us first see:  C Minor

Following whole, half, whole, whole, half, whole, whole

we have: C D D# F G G# A# C

Now the notes of the Harmonic minor scale are the same as the natural minor except that the seventh degree is raised by one semitone.

So C Harmonic minor is: C D D# F G G# B C

Now a Double Harmonic minor It is the same as the harmonic minor scale, except that it has a raised fourth.

So C Double Harmonic minor is: C D D# F# G G# B C; 

this is Hungarian Minor scale or one of the Hungarian Gypsy scales 

http://en.wikipedia.org/wiki/Hungarian_gypsy_scale

In wiki, it is also said that : this is a symmetrical scale that is very common in Flamenco

For A: https://www.youtube.com/watch?v=7smF-Bf_j30