Competition law is an ever more common element of public economic policy. One nation (the U.S.) had antitrust laws and active compliance a half century ago. Today, more than 90 jurisdictions have competition laws, and by the end of the decade the number will reach to 100. There is a lack of successful regulation of most antitrust laws, but an increasing number of jurisdictions have regulatory mechanisms that business operators will take seriously. The international extension of competition law has an impact on cross-border trade. The comparatively limited definition of extraterritoriality pioneered by the European Union (EU) and United States is often endorsed by national or regional antitrust regimes. Covid-19 has affected the competition laws and economy very badly. Even Competition Commission of India on 31^st March, 2020 has suspended its activities and announced that new filings or submission will not he accepted including the Office of Director General for ongoing investigation and fresh compliant. The study aimed to find the negative effects of covid-19 on the implementation of completion law, It was found that Covid 19 has affected prices, mergers, secret agreements, sharing information especially in the necessity products. It was recommended that CCI should come out temporary measures and control and should have close watch on the working of the players in the market to avoid any unethical trade practice that are prohibited by CCI.