Try this -
$(document).ready(function ($) {
var telugu = "ఆ౦ధ";
var english = "Andhra";
var target = $("#target");
word = english;
setInterval(function () {
target.fadeOut('fast', function () {
target.text(word).fadeIn('fast');
});
word = (word === english ? telugu : english);
}, 1000);
});