Surat- delhi - SL Class almost 700 seats comprising all weekly, biweekly, daily trains.
Bhagalpur- delhi - SL Class almost 900 seats in just 2 end to end trains.
Now compare which city has better no. Of trains connecting national capital. Actually whole bihar has good connectivity with delhi. By whole bihar i mean important cities of bihar like pnbe, gaya, dbg, bgp, etc.