(English: Avenue tree, Kannada: Honge Hind, Bengali: Karanj)
This elegant tree is useful in many ways. It is a very good shade tree as it gets thickly covered with shiny green leaves in summer (Unlike fancied gulmohar which sheds all its leaves in the summer when you need them most!). Traditionally oil was extracted from its pods to lit lamps. Now it gives us `bio-diesel' with many uses. . The leaves form good manure. Bees (& Kannada poets) are very fond of its small white mildly fragrant flowers.
Botanical name: Pongamia Pinnata.
Location in ISI campus: The small round about in front of B. Math hostel and canteen has a fine specimen. In the picture you can see one close to the main building next to a `Kanakachampa' tree. You can see many more in the forest if you just look around.
http://www.goodnewsindia.com/Pages/content/discovery/honge.html (on bio-diesel)
http://www.essential-oil-encyclopedia.com/essentialoil/encyclopedia/essential-oils-d/Karanj-Seed/(On medicinal properties of Honge Oil)
http://www.seabean.com/guide/Pongamia_pinnata/ (Pongamia pod as a `sea-bean' )
http://oisat.org/control_methods/plant_extract_formulations/pongam_tree.html (as harmless pesticide )