What is equal pay act of 1963?

The Equal Pay Act, an amendment to the Fair Labor Standards Act of 1938, requires employers to give women equal pay to men for equal (not similar) skill, effort, responsibility, and working conditions.
Pay may differ when based on seniority, merit, performance, or any other factor not based on sex. Pay can’t be reduced to bring the organization into compliance.
Due to this law no discrimination based on gender can be done, hence equal priority will be given to both the genders fairly.