after 66529 dep @6:50 there is no train upto 10:05(Seshadri Exp) a gap of 3 hrs , so a memu can be introduced in between which will dep @ around 08:30.Brindavan exp arrives @ 11:35 and AJJ-SBC pass @ 15:30 in between there is a gap of 4hours so another 2 memus can be introduced @ 12:45 & 14:00 hrs....