The very first written mention of Shankhpushpi can be found in the Acharya Charak, an ancient Ayurvedic text from the 2nd century BC. Shankhpushpi is called "Medhya" (Rasayana).
According to the mythological idea, Shankhpushpi is a heavenly plant that was brought to earth through the largest meadows of all time (Shukracharya). Which makes direct reference to its use in Ayurvedic medicine.
In India, one week before the expected birth, pregnant women traditionally take the Shankhpushpi root to tie around the waist. It is supposed to make the child's birth easier. A similar use is known from our culture with the Wegericht root as an amulet to facilitate childbirth.
More information about Shankapushpi Churna can be found on the website of the Ayurveda clinic.