As a citizen of Pakistan, every person has the right to do any lawful business of his choice. Furthermore, every Pakistani is permitted to practice any profession he/she likes. Article 18 of the Constitution of Pakistan guards the Freedom of trade, business or profession by declaring the same as the basic human right of every Pakistani.

Like all other rights, this right is not absolute. The goverment can place certain restrictions or regulations for conducting any business or trade. For example, you would need a degree in medicine to practice as a doctor. Some trades cannot be conducted unless you hold a license. These regulations must be in public interest and to promote and flourish the trade. Apart from this, the government can decide to conduct a business itself, to the exclusion of all others. The examples of this would be Railway and Electricity, where private companies are not allowed to offer their services.