Biotechnology is a fascinating and challenging field of research with wide scope and immense possibilities of producing improved varieties of plants free from pests and diseases and their mass production with a short time through tissue culture. Not only this, it has the potential to enhance the production, processing and marketing components of crop agriculture. Biotechnology has its roots in agriculture and brewing industry, but recent developments in genetic engineering and great advances in bioreactor design and computer aided process control have given it a new dimension which greatly extends the present range of technical possibilities. It has strong potential to revolutionize several facets of agricultural and industrial practices.