Name the entity, that has partnered with Visa Inc to launch SI(standing instructions )-Hub to make recurring payments using cards with a one-time enrollment.

Visa Inc, the world's leader in digital payments technology and BillDesk, an Indian online payment gateway company have partnered for the launch of SI (standing instructions )-Hub which is a smooth and secure way to make recurring payments using cards with a one-time enrollment. This comes after the introduction of guidelines for e-mandate on cards for recurring transactions by RBI(Reserve Bank of India).