Umno minister Mohamed Nazri Abdul Aziz has denied that the 1994 amendments to the Federal Constitution, which removed the need for new laws to receive royal assent, were to curtail the monarch's powers.

Nazri said the constitution at that time was amended solely to improve the law-making process in Malaysia, adding that the country was reaping the benefits of the changes to today.

"It was done to ensure the smooth implementation of laws for the well-being of Malaysians and Malaysia," he told reporters before attending a book launching event at the National Museum.