A terrible flood has hit Bangladesh, affecting millions of people. Many in Bangladesh are pointing fingers at their neighbor, India, accusing it of causing the disaster by opening a dam on a shared river. But India says it had nothing to do with it.

The floodwaters came rushing through after Bangladesh claims India opened the Dumbur dam, which sits on the Gumti River in the Indian state of Tripura. This state shares a long, 800-kilometer border with Bangladesh, making the river important for both countries.

Bangladesh’s interim government adviser, Mohammad Nahid Islam, strongly accused India of acting recklessly by opening the dam without giving any warning. He said this left Bangladesh with no time to prepare for the disaster. He added that India’s actions showed a “non-cooperative and inhuman” attitude towards its neighbor.

These accusations have stirred up a lot of anger in Bangladesh. Protesters, mostly university students, have taken to the streets, demanding that In...