The fact that Nehru was not corrupt is debatable. It would take too long to say why but let us talk about Indira Gandhi's rule. She encouraged sycophancy (for the first time in the Congress) and tolerated corruption. The Indian Bureaucracy and Polity achieved its dubious distinctions of being the most corrupt of the branches of Indian Government during her Prime Ministership. All of the subsequent functionaries that have held office since then are merely following her "illustrious" example.