The Indian Cooperative Sector has achieved commendable growth and success in the past eleven decades of its existence, touching millions of lives especially of the economically deprived and rural inhabitants of the country. The success stories of few cooperative sectors of the economy like industrial, food and agro processing, marketing and distribution cooperatives are being recognized across the globe for its effective contribution in the socio-economic development of its members and are accepted as role models to be replicated in the other emerging and under developing economies of the world. In few sectors it did fail. The Cooperative Model of business continues to gain attention globally and accepted as one of the medium to attain "Sustainable Development Goals" of the new millennium. In this context, a need was felt to write the book on the said subject discussing opportunities and challenges prevailing for the sector in the new millennium. The book contains most contemporary discussions after reviewing current legislations and government policies on the movement. The book will be of great use to the policy makers, practitioners, researchers and students studying in the domain of social economy and entrepreneurship.