Explanation:

• The Bangalore International Airport Limited (BIAL) will plant 500 Devanahalli Pomelo trees as part of its Corporate Social Responsibility (CSR) Programme "Namma Ooru". The plantation drive is also part of the 50th anniversary of World Earth Day.
• Devanahalli pomelo, a citrus variety, is almost on the brink of extinction.
• Devanahalli Pomelo has a Geographical Indication (GI) tag. It is grown in Devanahalli taluk, Banglore (Karnataka) and is popularly known as chakota.