Already Tri-weekly Duronto and Daily GR is there apart from AC coaches from Godavari, Visakha, Nanded tri weeklies. Do you think more demand is there to increase12783/84. 12784/84 has rake sharing SC-SHM weekly, unless they have another rake share or dedicated for 12783/84 there is no possibility to increase 12783/84 frequency and won't happen in near future.