Towards a greener environment by adopting HOG. Two NFR trains 05956 Delhi – Dibrugarh Brahmaputra Mail Spl & 02502 New Delhi – Agartala Rajdhani Spl started running with HOG technology. Fuel-saving to be around 1132 Kilo Litre per annum, costing Rs. 7.16 Cr in these two trains. - NFR Twitter