1) Chinese mythology 
The Ranka are an ethnic group belonging to the Marwari community of Rajasthan. The history of Ranka is related with two key persons. Kaku and Pata were two Goud rajputs, residing in city Vallabhi (Saurashtra). When Vallabhi was destroyed, they settled in Marwar. In their 5th generation were Ranka and Banka. Both the brothers were farmers in a vill...
Ranka is a cultivated variety of potato.