there is EMU train available between SRC & HWH, but my point is little different, I am not suggesting to all train pushing to HWH or SDAH, rather I am asking for a new terminal station which is in congested area of main Kolkata proper town, like salt lake, new town, ultadanga, ballygunj, behala, jadavpur, dharmtola, rabindra sadan, airport, nager bajar, salt lake karunamoyee etc, These area can easily be reached from anywhere in kolkata at a very short time, SRC station can not be reached easily at late night or early morning to catch the train or returning to home at proper kolkata (specially for North Kolkata people- it is very hard)