Sabke Same and Common suggestions hote h ... like ... (new) LHB rakes , infrastructure , advance signals, safety etc. etc. Chahe Indian ho Russian ho ya koi or . But ye sab karne ke liye jo Paisa lagega wo kha se aaye iska koi solution nhi btata. Paise hi ho to kisi ke suggestions ki jarurat nhi, infra thik hoga to apne aap speed increase ho jayegi. Dont expect high speed on these highly congested routes. Agar koi chance hoga to wo DFC complete hone ke baad hi ho sakta h