Answer: NH-139W
Notes: A new four-lane national highway NH-139W is being constructed connecting Patna with West Chamaparan district of Bihar. This highway will be included in Bharatmala Project, starting from NH-139 near AIIMS Patna, connecting Bakarpur, Manikpur-Sahebganj-Areraj to NH-727 near Bettiah district in Bihar.
