Vyuhavada is associated with Vaishnavism.

Vyuhavada is a concept in Vaishnavism that refers to the four-fold expansion of the supreme deity, Lord Vishnu. It is a theological concept that helps in understanding the various forms and manifestations of Lord Vishnu.

Explanation:

1. Vyuhavada in Vaishnavism:
In Vaishnavism, Vyuhavada is a key concept that explains the divine manifestations of Lord Vishnu. According to this belief, Lord Vishnu has four primary forms or expansions known as Vyuhavata. These expansions represent different aspects and functions of the supreme deity.

2. Four-fold expansions:
The four-fold expansions of Lord Vishnu are:

a) Vasudeva - Vasudeva represents the aspect of Lord Vishnu associated with creation. He is the form from which all other expansions emanate.

b) Sankarshana - Sankarshana represents the aspect of Lord Vishnu associated with maintenance and preservation of the universe. He ensures the harmony and balance of the cosmos.

c) Pradyumna - Pradyumna represents the aspect of Lord Vishnu associated with the destruction of evil forces and protection of the righteous. He is considered the divine warrior and protector.

d) Aniruddha - Aniruddha represents the aspect of Lord Vishnu associated with spiritual evolution and liberation. He is the form that leads souls towards ultimate oneness with the divine.

3. Significance:
Vyuhavada helps devotees in understanding the multifaceted nature of Lord Vishnu and deepening their spiritual connection with the divine. Each form of Vyuhavata represents a particular aspect of the supreme deity and provides a framework for devotional practices and understanding.

4. Relationship with Vaishnavism:
Vyuhavada is specifically associated with Vaishnavism, which is one of the major sects in Hinduism. Vaishnavism focuses on the worship of Lord Vishnu as the supreme deity and emphasizes devotion (bhakti) as the primary means of attaining spiritual liberation.

5. Comparison with other options:
a) Shaivism: Shaivism is the sect of Hinduism that worships Lord Shiva as the supreme deity. Vyuhavada does not have a direct association with Shaivism.

b) Tantricism: Tantricism is a spiritual path that involves rituals, practices, and meditative techniques. While Vyuhavada may be studied within the context of Tantric practices, it is not exclusively associated with Tantricism.

c) Vaishnavism: As explained earlier, Vyuhavada is associated with Vaishnavism as it pertains to the four-fold expansions of Lord Vishnu.

d) An episode of Mahabharata: Vyuhavada is a theological concept and not an episode of the Mahabharata, which is an ancient Indian epic.

Therefore, the correct answer is option 'C' - Vyuhavada is associated with Vaishnavism.