Answer:
It was so successful that within six years, it was undone, which is to say it was entirely unsuccessful. It built resentment among Hindu advocates for national independence or greater control over their country. It triggered a series of political crises, which ultimately made it so that Britain had no choice but to restore Bengal into one unit by 1911. However, by then, the damage was done.
Muslims had opposed the initial partition as well. Still, now that they were going to lose 'East Bengal,' they protested, and thus the reunion only served to increase the divides between Hindus and Muslims in India, but between them and the British rulers of the land.
Step-by-step explanation: