satya bhaisaab u need to update urself.the contract for 6 laning of delhi rohtak highway has already been awarded and the work has already started on it.there is a byepass being laid at bahadurgarh(widening not possible there as lots of shops,bus stand) and a bye pass at rohtak.regarding nangloi,there is a flyover which got completed few months back.now the traffic situation is not the same as it used to be.its much much better.moreover metro will be extended from mundka to bahadurgarh.so nangloi is not the issue here.