Sir,it was augmented into system permanently From Jan,2015 to 31st May,2015 but Tag of B4 was not given to it,it was operating as BE1 (You can not find any PNR having B4 tag on 12863 or in 12864)and During the month of June,it was not augmented in system allotment was happening during chart.in the month of July it was removed and 1 SE augmented...