The expressway will start from Amas in Aurangabad district located on Delhi-Kolkata NH-19 and will go all the way to NH-27 at the Nawada village in Darbhanga district crossing seven districts, including Arwal, Jehanabad, Patna, Vaishali and Samastipur.
It will be constructed in four packages and the first package starts from Amas to Shivrampur of 55 km, second package from Shivrampur to Ramnagar of 54.3 km, third package from Rampur to Pal Dashara of 45 km and the fourth package from Pal Dashara to Nawada of 44.1 km. The expected cost of the project is ₹6,000 crore and NHAI has allotted the tender to three construction companies.
The project is expected to be completed by 2024. After the completion of this expressway, it will connect north to south Bihar with travel time of less than four hours.