widening from two lane to two lane with paved shoulder and strengthening at km 102/2 - 118/070 including widening of pipe culvert at km 102/4, 103/2, 103/10, 104/2, 107/4, 107/10, 109/8, 110/10, 113/2, 115/2, 115/8, 115/10, 117/10 and widening of slab cul