Why anya devatha worship is to be avoided?
It is totally to be avoided by all those who are aspiring for Moksham (liberation),because they cant grant you the salvation. There are numerous texts in veda and upanishads that Sriaman Narayana is the only one who can grant moksham. Now the one who is capable of granting you the highest position ie a place in his abode cant HE grant the mundane things to you if you ask for it.Then why to pray to other devathas why not ask Sriman Narayana ONLY.