why railways have given contract for so many new diesel engines like wdg 4g and wdg 6g what will be the use of it when all routes will get get electrified in 4 - 6 years i think they should have taken contract for electric loco as the future of diesel engine is gonna finish in 6 or 10 years completely. !!!SIMPLY WASTING MONEY AND THEN SAYING "RAILWAY GHATE ME CHAL RAHA HAI SAHAAB"!!... WHAT WILL BE WDG 4G BE DOING ??!!! SHUNTING?!!??