Coffee and tea
It was possible that Cleopatra had knowledge of India that Caesar did not have due to geography. Egypt is much closer to India than Rome and enjoyed a brisk trade with India. Perfumes and spices were the main items imported from India.
roses
Rice is the major food crop in India.
GoldIvorySilk , etc
leave
I believe tobacco was the first cash crop in the world
rice or opium, depends what you mean by "popular"
there are 5 categories of crop plant in India
cotton
timber
Tea was imported to the colonies. The colonies exported tobacco, lumber, and sugar.
India