State lays foundation stone for implementation of Digha-Bihta (Upto Koilwar Bridge Approach) Road Project in Bihar September 24, 2025 | Project Updates, Under Construction The Government of Bihar laid the foundation stone for implementation of Digha-Bihta (Upto Koilwar Bridge Approach) Road Project (J.P. Ganga Path Extension) on September 22, 2025. This content is restricted.