Explanation:

Operation Greens is a 500 crore project on the lines of Operation Flood for enhancing production and reducing price volatility of fruits and vegetables. Government has decided to start focusing on three basic vegetables namely tomatoes, onions and potatoes (TOP) initially. They form almost half of vegetable production in the country.
It will further promote Farmer Producers Organisations (FPOs), agri-logistics, processing facilities and professional management to achieve its objectives It will help in doubling farmers’ incomes by 2022 by providing sustainable prices as these commodities generally face price collapse during the periods of high production due to lack of cold storage facilities and poor linkages of farmers with processing and organised retailing.
Price stability would also ensure availability of these basic vegetables at affordable prices to consumers