India is stepping up to help its neighbor, Sri Lanka, by supplying liquefied natural gas (LNG), connecting electricity grids, and building a new petroleum pipeline. These major plans were announced by Indian Prime Minister Narendra Modi during a joint press event with Sri Lankan President Anura Kumara Dissanayake, who is visiting India for the first time since taking office.

The announcements come at a critical time for Sri Lanka. After years of economic struggles, including a debt defau...