The rate of oxidation of oxalic acid by acidified potassium permanganate increases as the reaction progresses. Which type of catalysis is this?

In certain reactions, one of the product acts as a catalyst. In the initial stages the reaction is slow but as soon as the products come into existence the reaction rate increases. This type of phenomenon is known as auto-catalysis. For examples The rate of oxidation of oxalic acid by acidified potassium permanganate increases as the reaction progresses. This acceleration is due to the presence of Mn²⁺ ions which are formed during reaction. Thus Mn²⁺ ions act as auto-catalyst.