Some articles on shakadweep:

Sakaldwipiya History - Earlier History - Modern Historical Theory
... that Sakaldwipi or shakadwipi Brahmins were originally from shakadweep which was in central Asia ... The ayurvedists of shakadweep started the chhath puja which bind the entire fabric of bihar-(proof kalyan- vart evam thoyar varshik vishesh ank published by gita press ... the term "maga" and "shakadweep" have been found in the vedas and there is ample literature on ...