This is very controversial among Indians, but there are many among Indians who wish the British never left. The major builder of modern Delhi was a person named Sobha Singh. His son, Khushwant Singh, was a major writer/journalist in post-Independence India. The son has written a book about how when the British were in control, his father would sometimes gift fruit baskets to the British managers/bureaucrats (of the Delhi-building project), and they would accept the gifts, but they never asked for bribes (or fruit baskets). After the British left, and Indians (government bureaucrats/civil servants) took over the project, his father had to always pay them bribes to get movement on projects.
India had airplane factories (multiple) before and during WW2. They were all shut down after Nehru's nationalization of industries project. It took almost another hundred years until India made planes again (I use the word "made" loosely... they mostly assemble...).
Places like Hispaniola (Haiti/DR), Philippines, Cuba would be far, far ahead of where they are today if a benevolent USA still had them in her territories (of course, the "benevolent" is important here, it shouldn't be a vindictive, extractive power).