Even as efforts are underway for resolution of the row involving Indian diplomat Devyani Khobragade, her father on Tuesday led a protest march outside the American consulate here, terming the US administration’s action against her as “illegal”. Devyani has sought a one-month extension of the deadline for charging her in the visa fraud case which has been opposed by the prosecution. This even as the US says it wanted to resolve the “ordeal” as soon as possible.