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12 May 2026
L&T Achieves Double Tunnel Breakthrough at Dibang
Larsen & Toubro (L&T) has achieved a historic double milestone at the Dibang Multipurpose Project (Lot-02) in Arunachal Pradesh. On 28 April 2026, its Heavy Civil Infrastructure team recorded simultaneous breakthroughs in Diversion Tunnel-4 and Diversion Tunnel-5, successfully coordinating two daylighting blasts on the same day amid the difficult geological and environmental conditions of the Lower Dibang Valley.With this, the project has now completed breakthroughs in three of the five diversion tunnels, following DT-3 in February. The 2880 MW Dibang Multipurpose Project is a critical..

