Survey, Design, Supply, Installation, Testing, And Commissioning Of Automatic Block Signalling Work Utilizing Msdac For Continuous Track Circuiting Including Associated Auxiliary Works At Adjoining Stations Along With 4X48 Ofc Work In The Aunrihar Jn (Arj) - Chhapra Jn.(Cpr) Section In The Varanasi Division Of N.E. Railway.