Padma Tanka
A name given to a gold coin of Southern India, concave in shape and averaging about fifty-eight grains. Their peculiar form connects them with the coinage of the Western Chalukya dynasty of Kalyani, but their date cannot be determined with accuracy, though it is later than the sixth century
The obverse shows a seven-petalled lotus flower, and the reverse is blank..
Synonyms: Lotus Coin
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)