Step 1: Recall what a scientific name identifies.
Scientific names uniquely identify plants and animals across languages.
Step 2: Recall the plant family this name belongs to.
Ocimum tenuiflorum belongs to the basil family, commonly called Holy Basil.
Step 3: Confirm the common name.
In India, this plant is known as Tulsi.
\[ \boxed{\text{Tulsi}} \]