Installation and maintenance of lighting arrangements & overhead line in Gourangdi ( A ) Colliery under Salanpur Area. A ) Installation of tubular pole with LED lights to cover the coal depot at Gourandi ( A ) OCP. B ) Supply, installation & erection of 200W LED tower lighting arrangement at new workshop of Gourandi ( A ) OCP. C ) Replacement of 2ph, 5 wire, 440V overhead line with AB cable near Kalipahar village road at Gourandi ( A ) OCP.