There is no one "Indian" culture. In the eastern Indian state of West Bengal, goat bone marrow is relished a lot, and fatty fish brain is relished and considered brain food.
Does this mean Ghee is generally not used in WB?
Sure there will be local variations due to a variety of factors - invasion of other cultures (islamic, christian, chinese etc) The Ghee thing does have its general influence in Indian culture.
Ghee is used in WB but bone marrow is loved a lot by young and old alike and I thought it pertained to the report.