Since time immemorial, the sannyasa order has carried the tridanda. Later Sankaracarya introduced the ekadandi-sannyasa. A tridandi-sannyasi is a Vaisnava sannyasi, and an ekadandi-sannyasi is a Mayavadi sannyasi. There are many other types of sannyasis, who are not approved by Vedic rituals. A type of pseudo-sannyasa was introduced by Indra when he tried to hide himself from the attack of Vijitasva, the great son of King Prthu. Now there are many different types of sannyasis. Some of them go naked, and some of them carry a skull and trident, generally known as kapalika. All of them were introduced under some meaningless circumstances, and those who have a poor fund of knowledge accept these false sannyasis and their pretenses, although they are not bona fide guides to spiritual advancement. At the present moment some missionary institutions, without referring to the Vedic rituals, have introduced some sannyasis who engage in sinful activities. The sinful activities forbidden by the sastras are illicit sex, intoxication, meat-eating and gambling. These so-called sannyasis indulge in all these activities. They eat meat and flesh, fish, eggs and just about everything. They sometimes drink with the excuse that without alcohol, fish and meat, it is impossible to remain in the cold countries near the Arctic zone. These sannyasis introduce all these sinful activities in the name of serving the poor, and consequently poor animals are cut to pieces and go into the bellies of these sannyasis. As described in the following verses, such sannyasis are pakhandis. Vedic literature states that a person who puts Lord Narayana on the level with Lord Siva or Lord Brahma immediately becomes a pakhandi. As stated in the Puranas: