Jain sect which follows the original teachings of Mahavira
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Mahavira, also known as Vardhamāna, was the twenty-fourth tirthankara (ford-maker and propagator of dharma) who revived and reorganized Jainism. He expounded the spiritual, philosophical and ethical teachings of the previous tirthankaras from the remote pre-Vedic era. He was the spiritual successor of 23rd tirthankar Parshvanatha. In the Jain tradition, it is known that Mahavira was born in the early part of the 6th century BCE into a royal Kshatriya Jain family in present-day Bihar, India. He abandoned all worldly possessions at the age of 30 and left home in pursuit of spiritual awakening, becoming an ascetic. Mahavira practiced intense meditation and severe austerities for 12 years, after which he is believed to have attained Kevala Jnana (omniscience). He preached for 30 years and is believed by Jains to have attained moksha in the 6th century BC, although the year varies by sect.
The traditions of Lord Pasharvanath, Mahavira Swami and even from before that were compiled as "Purvas." The word 'Purva' itself means 'before'. There are 14 Purvas. These 14 Purvas are described in the 12th anga of Jinvani which is called as 'Drishtivaad anga'.