Bonus shares are additional shares given to the current shareholders without any additional cost, based upon the number of shares that a shareholder owns.
capitalisation of profits refers to the process of converting profits or reserves into paid up capital. A company may capitalise its profits or reserves which otherwise are available for distribution as dividend among the members by issuing fully paid bonus shares to the members. A bonus share may be defined as a free share of stock given to current shareholders in a company ,based upon the number of shares that the share holder already owns bonus issue is also known as scriptt issue or capitalisation issue