Laying, trenching & maintaining of underground fiber at 33 district of Bihar for connecting the link between Biswan POP to Treasury office under the BERLTRON
Muzaffarpur, Sitamarhi, Sheohar, Bettiah, Bagha, Motihari, Gopalganj, Siwan, Chapra, Kishangaj, Arraiah, Forbesganj, Madhubani, Jhanjharpur, Benipur, Darbhanga, Begusarai, Khagria, Munger, Saharsa, Banka, Bhagalpur, Madhepura, Purnea, Katihar, Jamui, Arrah, Nawada, Barh, Bhabhua, Lakhisarai, Nawagachia, Shekhpura