12622 is trailing 12841 by 11 mts. 12841 crossed Nayadupeta at 15.14 and 12622 crossed Nayadupeta at 15.25. 12622 is late by almost 10hrs whereas 12841 is early by some 20+ mts. Hence there could be a possibility of overtake to allow 12622 to makeup some time without disturbing 12841's schedule