During the last two decades, several nations have enacted or reinforced competition legislation. In most countries, at the same time, indigenous sectors are under ever-greater import demand. Towards an analysis, to monitor over time and the presence of imports and the number of domestic companies, on the influence of competitive legislation and rules (CLR) on the domestic competition for several nations. To see the direct impact of the Competition Law on competitiveness as industries with more import exposure or bigger local businesses are tending to be more competitive. However, it should be concluded that industries operating under competition legislation tend to have more domestic companies. This implies that by stimulating entrance, competition legislation may have an indirect influence on domestic competition. In terms of the function of government in industrial growth and the position of the public and private sector in country industrialization, the comparative role for small and big industries, an industrial policy may be described as the declaration of importance. It is essential to introduce new laws and regulations to encourage competition and constrain large industries. The problems of Industry 4.0 will be met through digitalization and automation. The vast amount of data produced on the industrial Internet of Things (IIoT) must be collected, understood, and used. This is precisely what the digital company does by integrating the real world with the digital world. Therefore, the endless quantity of data enables the industry to make the CLR-IIOT technique more sustainable by employing final resources efficiently. Competition results in greater economic dynamic efficiency through innovation, technical advancement, reduced prices, and improved quality and customer service. Competition legislation is necessary since the market may be affected by faults and distortions, and diverse consumers may have recourse to anti-competitive actions such as cartels, abuse of predomination, etc.