Prapatti can be of different types depending on the mode of its observance. It must be noted at this juncture that whatever be the mode of observance or the types of Prapatti being followed, the role of the acharya is important in this matter. This is because a person seeking moksha needs to be initiated with the preaching of the requisite mantras and imparted with the basic knowledge of the Vaishnava doctrines. The importance of acharya or a Vaishnava disciple is so great that a section of Vaishnavas regard the love and worship of an acharya (acharya bhimana) as one of the subsidiary means to moksha. Unlike bhakti yoga which is a lifelong process, prapatti as a means to moksha is to be performed only once. This is compared to the function of a clever archer who shoots the arrow at the target in a moment. Thus, says the Mundaka Upanishad, "The pranava (syllable aum) is the bow; one`s self is the arrow; Brahman is the target of it; it is to be hit with concentration of mind; thus, the self becomes united with it like the arrow (with its target)."
The different ways in which prapatti can be observed are mainly two. It can be observed by means of the recitation of the prescribed prayer with the help of a qualified preceptor, the acharya. This kind of Prapatti is known as uktinistha. Alternatively, one may do it through the medium of an acharya, who on behalf of the concerned individual performs saranagati in the prescribed manner. This is known as acharya nistha.
There are also other modes of observance and the prescribed ritualistic procedure varies from one sect to the other even among the Sri Vaishnavas. But whatever procedure is followed, it is definite, according to the Vaishnava theology, that the attainment of moksha is assured. Once it is done there is no need to pursue any other spiritual discipline for the purpose of moksha. The aspirant can than feel himself as a person who has done his duty and he can live in peace for the rest of his life without any fear of rebirth and engage himself in divine service for the pleasure of God.
