India is developing the Chenab-Beas Link Tunnel in Himachal Pradesh to divert surplus water and generate hydroelectric power.
The project intensifies a long-standing water dispute between the two nuclear-armed neighbors. Because the Indus River system is critical for agriculture and energy in both nations, any alteration to water flow can trigger diplomatic crises.
Located in the Lahaul-Spiti district, the tunnel is designed to move water from the Chenab basin into the Beas River. Indian officials said the link will improve regional connectivity and water management. The specific cost of the Chenab-Beas Link Tunnel project is estimated at Rs 2,352 crore [1]. Other reports indicate total investment in broader Chenab river projects has reached Rs 2,600 crore [2].
Pakistan has reacted strongly to the development. A Pakistani official said, "The Chenab-Beas tunnel is a grave violation of the Indus Waters Treaty." The treaty, signed in 1960, governs the distribution of the Indus River system's waters, a framework that has historically survived multiple wars between the two countries.
India has not accepted the accusation. An Indian government spokesperson said India dismissed the allegations, calling them unfounded.
The tension comes as India continues to expand its hydroelectric infrastructure in the region. By diverting surplus water, India aims to maximize power generation and irrigation efficiency within its borders. However, Pakistan argues that such diversions reduce the volume of water flowing into its territory, potentially threatening its food security.
The dispute highlights the fragility of the water-sharing agreement as both nations face increasing pressure from climate change and growing populations. While India maintains its projects are within the legal limits of the treaty, Pakistan views the infrastructure as a strategic move to control the river system.
“"The Chenab-Beas tunnel is a grave violation of the Indus Waters Treaty."”
This dispute underscores the strategic use of water as a tool of statecraft in South Asia. While the Indus Waters Treaty has provided a stable legal framework for decades, the construction of large-scale diversion projects like the Chenab-Beas tunnel tests the limits of that agreement. If both nations cannot agree on the technical specifications of such projects, the treaty may struggle to prevent water-related conflict as regional scarcity increases.
