I agree with ur point.. Becoz For Hyderabad, There is now total 4 Trains (1 Biweekly SF, 1 NWR's, 1 SCR's, 1 special). 8 years back, only this train was from HYB to JP.
Also, after TBM-BGKT HS, MDU-BKN Anuvrat, Mannargudi BGKT, etc, a lot of connectivity is there from KZJ,BPQ, NGP, BPL to Jaipur..
I agree with ur suggestion!