Introduction:
The concept of Anuvrata was advocated by Jainism. Anuvrata is a moral and ethical code of conduct that emphasizes on the practice of small vows or commitments in order to lead a virtuous and disciplined life. It is a set of principles that guide individuals in their actions, thoughts, and speech, promoting non-violence, truthfulness, and self-control.

Explanation:
Anuvrata is derived from the Sanskrit words "anu" meaning small and "vrata" meaning vow or commitment. It is based on the belief that by practicing small vows, individuals can gradually progress towards higher levels of spiritual and moral development.

Key Principles of Anuvrata:
1. Non-violence (Ahimsa): Anuvrata emphasizes the practice of non-violence in thoughts, words, and actions. It promotes compassion, kindness, and respect for all living beings.

2. Truthfulness (Satya): Anuvrata encourages individuals to always speak the truth and refrain from falsehood. It promotes honesty, integrity, and transparency in all aspects of life.

3. Non-stealing (Asteya): Anuvrata advocates the principle of non-stealing, which means refraining from taking what does not belong to oneself. It promotes contentment and the respect for others' property.

4. Chastity (Brahmacharya): Anuvrata emphasizes the practice of chastity, which involves controlling one's desires and leading a disciplined life. It promotes self-control and the preservation of energy for spiritual growth.

5. Non-possession (Aparigraha): Anuvrata encourages individuals to minimize their material possessions and detach themselves from worldly attachments. It promotes simplicity, contentment, and the realization that true happiness does not lie in material possessions.

Advocates of Anuvrata:
The concept of Anuvrata was primarily advocated by Jainism, an ancient Indian religion founded by Lord Mahavira. Jainism places great importance on non-violence, truthfulness, and self-discipline as a means to attain spiritual liberation and enlightenment.

Jainism believes in the concept of Ahimsa Paramo Dharma, which means non-violence is the highest virtue. Jain monks and nuns practice Anuvrata by taking vows of non-violence, truthfulness, non-stealing, chastity, and non-possession. They lead a simple and ascetic lifestyle, dedicated to the pursuit of spiritual enlightenment.

Conclusion:
Anuvrata, advocated by Jainism, is a set of moral and ethical principles that guide individuals towards leading a virtuous and disciplined life. It promotes non-violence, truthfulness, self-control, and detachment from material possessions. By practicing Anuvrata, individuals can cultivate compassion, integrity, and spiritual growth.