Underutilized and underexploited horticultural crops form an integral part of health food green parks, neutraceutical industry, home decorations, renewable sources of green energy and above all food reserves during calamities. Leaf vegetables like agathi, chekkurmanis, waterleaf, drumstick leaf, basella and colacasia leaf are rich in fibre, minerals and beta carotenes. Cucurbits like ash gourd, pointed gourd, ivy gourd, kekrol, snap melons and chow-chow are rich in iron and amino acids. Fruits like karonda, aonla and cherries are highly nutritious and are suited to less moisture soils. Noni is a fruit for health. Noni juice is recommended against diabetes, obesity and sleeplessness. Among spices, long pepper, mint, celery, fenugreek and garcenia possess medicinal properties. There are a large number of underexploited medicinal plants like tulsi and peppermint with considerable economic value. Underutilized crops like in Tripura, Orissa and Kerala are specially mentioned. There is need to broaden the food basket with lesser know crops. There is a shift from Health Care to Wellness Industry. Prevention is always better then cure. The present volume deals with underexploited and underutilized horticultural crops in its totality. The contributors of each are working scientists in the specific crop.