One-time donation occurs when a donor makes a one-off/single monetary contribution. Multiple and separate contributions are considered as one-time donations.
Recurring donation is when a donor elects to make a regular, ongoing donation on a recurring basis e.g. monthly or annually. Recurring donations will help the donors plan their contributions according to their personal budget and schedule of their choice.
Recurring donations will allow you to make a bigger charitable impact as we nurture talent and future leaders through quality education and world-class research for the betterment of our nation.