Please flag this imperial mail alternative and a great connectivity of sealdah area people with mumbai. At present all trains to mumbai are from HWH or SHM only. This will surely help many people of this area and also it will not go via MGS-ALD-STA busy route, thus it will not stuck up for any late runnings.
Good punctuality,great seat availability and nearly same timings as of imperial mail, definitely would be a sure shot success.