The Indian Independence Act 1947, was repealed by the respective constitutions of India and Pakistan in 1950 & 1956. The Parliament of the United Kingdom, never repealed it but according to the Wikipedia page, it's mentioned, certain sections were repealed, as stated below.
Although under British law, the new constitutions did not have the legal authority to repeal the Act, the repeal was intended to establish them as independent legal systems based only on home-grown legislation.[17] The Act has not been repealed in the United Kingdom, where it still has an effect, although some sections of it have been repealed
Which sections of the act were repealed under British law and why?