I remember that. I feed or resident Ganesha idol a few spoons of milk. I thought it was a miracle too, but was still skeptical. Look up 'Hindu milk miracle' on Wikipedia. Scientists experimented with it and offered capillary action and surface tension as an explanation.
Edit: http://ibnlive.in.com/news/science-behind-milk-drinking-gods/19175-11.html
Science
Edit: http://ibnlive.in.com/news/science-behind-milk-drinking-gods/19175-11.html
Science

