But weeklies aren't too much useful . We already have some weeklies from Howrah to Trivandrum/Ernakulam which aren't able to meet demand..
Moreover. From Howrah there is only 2 Daily train to South India which terminate at MAS, and not a single daily train to Kerala . Areas like Cochin, Trivandrum, Coimbatore need a daily train to Kolkata, Vizag, BBS.