This was till I saw a photo of the plant and read The Hindu article - Green and clean - the other day. They call it Peace Lily, and, grown as indoor plant, it serves as air freshener. Peace Lilies grow easily, and they proliferate so fast that many people just throw away the extra plants that grow in their pots.
"Grow them on your balcony or garden first and then bring them into your house to clean up the air", says The Hindu citing home gardener Priya Mascarwnhas. The plant grows well in semi-shade and can be potted in a mixture of kitchen compost and red earth.