The Agasthiar Siddha Guru Parampara Lineage. Siddha Sathguru Venkataraman. Agasthiar.Org.
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Sri Bala Sarasvathi page 5.
Sri Bala Sarasvati page 6.
Sri Bala Saraswathi page 7.
UPDATED: Sri Bala Sarasvathi "mahimai" (Tamil).