Construction is the process of constructing a building or infrastructure. Construction differs from manufacturing in that manufacturing typically involves mass production of similar items without a designated purchaser, while construction typically takes place on location for a known client. Construction as an industry comprises six to nine percent of the gross domestic product of developed countries. Construction starts with planning,[citation needed] design, and financing and continues until the project is built and ready for use.
निर्माण के लिए किन तीन चीजों की आवश्यकता होती है? 
योजना बनाना, [उद्धरण की आवश्यकता] डिजाइन, और वित्तपोषण 