1- JNANA YOGA.
Jnana yoga (union due to pure knowledge) is one of the types of yoga mentioned in Hindu philosophies. Jnana in Sanskrit means "knowledge"jnana yoga is knowing beyond name and form through pure understanding of the nature of doer. who when seen in clarity results in liberation.

This path is different from other forms of Yoga in a sense that other form emphasizes on a structured way of experiencing reality through a process of crystallization carried by doing different forms of meditation. However this path simply states that only knowing is enough. It many a times draw parallels to Samkhya as well. As used in the Bhagavad Gita, the Advaita philosopher Adi Shankara gave primary importance to jnana yoga as "knowledge of the absolute" while the Vishishtadvaita commentator Ramanuja regarded knowledge only as a condition of devotion. In the Bhagavad Gita (13.3) Krishna says that jnana consists of properly understanding kshetra (the field of activity—that is. the body) and kshetrajna (the knower of the body—that is, the soul). Later in the Gita (13.35) Krishna emphasizes that a transcendentalist must understand the difference between these two.

RAJA YOGA.
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Raja is a term with a variety of meanings depending on the context.In Sanskrit texts Raja yoga refers to the goal of yoga (which is usually samadhi) and not a method of attaining it. Classical tantric texts use the term raja yoga to refer to the consumption of sexual emissions in their practices. The term also became a modern retronym, when in the 19th-century Swami Vivekananda equated raja yoga with the Yoga Sutras of Patanjali. Raja yoga is sometimes branded as or referred to as "royal yoga" "royal union"."sahaj marg"."classical yoga" and "ashtanga yoga". many of these are different practices from each other and from the historical concept of Raja yoga.

BHAKTI YOGA.
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Bhakti yoga is a spiritual path or spiritual practice within Hinduism focused on the cultivation of love and devotion toward God. It has been defined as a practice of devotion toward God, solely motivated by the sincere, loving desire to please God, rather than the hope of divine reward or the fear of divine punishment. It is a means toward a state of spiritual liberation or enlightenment through
the "realisation" or the attainment of "oneness" with God. Bhakti yoga is often considered by Hindus to be the easiest way for ordinary people to attain such a spiritually liberated state, because although it is a form of yoga, its practice is not as rigorous as most other yogic schools, and it is possible to practice bhakti yoga without needing to become a full-time yogi. The origins of Bhakti can be seen in the Bhagavad gita.