Your answer to this question is here
http://anushaktinagar.net/pg/forum/topic/40402/wish-to-know-about-abacus/
Y dont you contact Bella Canazone? Send him a message. or post on his message board in profile. He will contact you.
Dear Members,
I wish to know in our township any body train/coching ABACUS for children,because my children want to train,kindly let us know the source of information
Dear Members,
I wish to know in our township any body train/coching ABACUS for children,because my children want to train,kindly let us know the source of information