Fifteen lakh trees. A place in the Guinness Book of Records. The Bengaluru Development Authority (BDA) has been on overdrive, promoting its new project to plant 15 lakh trees in spaces created in its new layouts. 240 acres have been earmarked across BDA’s faraway layouts. The saplings are to be planted across lake and nala buffer zones, parks and public spaces in new neighbourhoods like Nadaprabhu Kempegowda Layout, Banashankari 6th Stage, and Dr Shivarama Karanth Layout, according to the BDA Chairman N A Haris. While such massive tree plantation exercises are by themselves questionable, there is also the question of a…