The difference between an african elephant and an indian elephant?
As you have already summized by the responses herein the size of the ears is the most readily recognizable way of telling the difference between these two — Indian elephants having the smaller ears and tusks — but, they are also somewhat smaller overall than the African elephant — but, this is not so readily noticable since a smaller or more immature African elephant can appear in size much like the fully mature Indian variety !!