Groundnut, also known as peanut, is a self-pollinating legume crop grown underground. It is an important oilseed crop cultivated in over 100 countries. There are four main types of groundnuts grown - Spanish, Virginia, Runner, and Valencia. Breeding objectives for groundnut include developing high yielding varieties with disease resistance, short duration, and improved quality traits like higher shelling percentage and oil content. Common breeding methods used are introduction, selection, hybridization, and mutation breeding.