read some stuff in Pune Times (http://timesofindia.indiatimes.com/articlelist/2070978938.cms) and that got me started!

http://www.indiangyan.com/books/healthbooks/food_that_heal/curd.shtml - It has been estimated that regular milk is only 32 per cent digested after an hour in the digestive tract, whereas 91 per cent of curd is digested within the same period of time.

 

http://www.bawarchi.com/health/milk1.html seems to suggest that Buffalo milk gives more Ca and Ph than Cow milk.. hmm!

 

another article on curds - http://www.indianexpress.com/iep/sunday/story/20839.html