Vajrayana

Founded by medieval Indian Mahāsiddhas, Vajrayāna subscribes to the literature known as the Buddhist Tantras. It includes practices that make use of mantras, dharanis, mudras, mandalas and the visualization of deities and Buddhas. According to Vajrayāna scriptures, the term Vajrayāna refers to one of three vehicles or routes to enlightenment, the other two being the Śrāvakayāna (also known pejoratively as the Hīnayāna) and Mahāyāna.

Source of information – https://en.wikipedia.org