The concept of Anuvrata was advocated by Jainism.

Jainism:
Jainism is an ancient Indian religion that dates back to the 6th century BCE. It is primarily based on the teachings of Mahavira, who is considered to be the 24th and last Tirthankara (spiritual leader) of Jainism. Jainism emphasizes non-violence (ahimsa), truthfulness, non-stealing, chastity, and non-attachment as the fundamental principles of life.

Anuvrata:
Anuvrata is a concept that was introduced by Acharya Tulsi, the ninth Acharya of the Jain Swetambar Terapanth sect. Anuvrata means "small vows" or "partial vows." It is a set of ethical guidelines that are less strict than the vows taken by Jain monks and nuns but are still aimed at promoting a moral and righteous way of life for laypeople.

Key Principles of Anuvrata:
1. Non-violence: The practice of non-violence is one of the core principles of Anuvrata. It involves refraining from causing harm to any living being, both physically and mentally.
2. Truthfulness: Anuvrata encourages individuals to always speak the truth and avoid falsehood in their words and actions.
3. Non-stealing: This principle promotes honesty and the avoidance of theft or dishonesty in any form.
4. Chastity: Anuvrata advocates for sexual purity and fidelity within the boundaries of marriage.
5. Non-attachment: The concept of non-attachment encourages individuals to let go of material possessions and desires, leading to a state of detachment from worldly attachments.

Difference between Anuvrata and Mahavrata:
While Anuvrata is meant for laypeople, Mahavrata is a set of vows taken by Jain monks and nuns. Mahavrata is more stringent and includes five major vows: non-violence, truthfulness, non-stealing, celibacy, and non-attachment. These vows are practiced with utmost dedication and discipline by the monastic community.

Conclusion:
The concept of Anuvrata, which advocates for a moral and righteous way of life through the practice of non-violence, truthfulness, non-stealing, chastity, and non-attachment, was advocated by Jainism. It provides a set of ethical guidelines for laypeople to follow in order to lead a virtuous life.