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In today’s time, the types and scope of industries are massive. Industries have met with a lot of varied applications and requirements and are serving to facilitate the same. These industries provide to serve needs of mankind, ranging from the most basic necessities to comfort and exotic offerings. Industry can be referred to as any large-scale productive activity. It is these industries that strengthen a nation’s economy, fulfils its needs, and provide safety, security, etc. Most spheres around us are industries in themselves. Some sectors of industry are depicted in Figure 1.1. The main features of any industry are large-scale production, specialization, research and development, mechanization, standardization, and management. We will now look into types or classification of industries and get to know about each one of them individually [1]. Industries can broadly be classified into the sectors: primary, secondary, and tertiary. The primary sector comprises of industries that are mainly involved in the extraction of raw materials, for examples, industries extracting metals from their ore, mining, and farming.

The secondary sector is where industries perform manufacturing and packaging of goods and commodities, examples of this sector of industries include food processing industries, car part manufacturing, and other such industries. The tertiary sector is also known as the service sector; industries such as IT, defence services, judicial workforce, banking, and teaching come under this category. Other bases of classification are either as organized and unorganized sector industry or as public sector or private sector industry. Organized industry sector is such that all its employees are assured work throughout their employment and there terms for the same are fixed and regular. In contrast, the unorganized sector provides flexible employment at the discretion of the employer and there exist no regularity or guarantee of the employment term, also such institutions may not necessarily be registered with the government. Public sector industries are those which are owned, funded, and managed by the government and like most other government jobs provide benefits to its workers such as pension. Private sector industries are owned by individual or partnerships between individuals.

Figure 1.1 Industries in focus.

The main motive of the individual running the company is to earn profit and these are not state controlled. The terms of employment may vary from company to company based on the interests of the owner. In India, most of the private sector industries are known to be paying higher salaries to its employees as compared to government industries but government jobs are seen to offer more job security benefits while under employment and even after it. All these are interdependent, we may say that primary sector industries are responsible for production of raw materials, the secondary sector process these raw materials to transform them into useful goods, and the tertiary sector utilizes and makes these products available to the consumers. Let us now focus on some industries and understand their requirements and production mechanisms.

In this part, we will be discussing about all the various industries, their functioning, and the importance that they hold. Let us understand the working of a few industries.