Is Tulsi Vivah the same as the sacred ritual of Kartik Poornima?

Tulsi Vivah is the most celebrated and beloved of the sacred rituals of Kartik Poornima, though the full moon night itself encompasses several rituals including the holy bath, Deep Daan, Vishnu Puja, and night vigil. The Tulsi Vivah ceremony is performed from Ekadashi (Day 11) through Kartik Poornima (Day 15), with the most widely observed date being Kartik Dwadashi. Performing or commissioning the Tulsi Vivah during this five-day window is the quintessential expression of the Kartik Poornima sacred ritual.