Art - India

I am very intrigued by the lack of Indian artists till the late nineteenth century, of the calibre of the western ones. We have our Ajanta or Chithannavasal from fifth century. We have our various schools like mysore painting, tanjore painting, mughal paintings etc. But not in the likes of western art that is fueled by the imagination and improvements of individual artists till the modern era.

I wonder if anyone has researched the reason for this. We had techniques. One cannot say its simply a lack of individualism - We have individual marks in music and literature. But not any major Indian artists till perhaps Ravi Varma came into the picture?