No, no, no... Eri hasn't done 1 or 2 south movies, but have done more than 6 to 7 movies in south.
2 in kannada, 2 or 3 in telugu, 2 in tamil. She may not be popular now, but she was popular at least in Bangalore 8 to 10yrs back. She was just 18yrs I guess then, when she did "Ninnindale" which was a huge success. Later "Buguri" this was also an hit movie.