The Centre approved the new railway line between Karpurigram and Bhagwanpur, to be built by the Samastipur Railway Division at an estimated ₹1,692 crore.
Six stations are proposed — Karpurigram, Tajpur, Bhagwanpur, Sultanpur Haq Harihar, Mukandpur and Mahua Jalalpur — along with seven major bridges, about 51 subways in place of level crossings and a road overbridge over NH-28 near the Tajpur vegetable market. Faster movement of farm produce to markets such as Patna is a key expected benefit.