Biodiesel is presently produced in India from

In India biodiesel is chiefly produced from Jatropha, whose seeds yield large amounts of non-edible oil.

Calotropis is a wild shrub not used as the main biodiesel source.

Catharanthus is a medicinal plant, not a biodiesel crop.

Delonix, the gulmohar, is an ornamental flowering tree, not an oilseed source.

Jatropha grows on wasteland and does not compete with food crops.

Its oil is transesterified into biodiesel that can blend with regular diesel.