As per witnessed by me on the date : 22nd September the Coach composition of 12816 / 12815 Nandan Kanan Express : Loco (WAP4 MGS/GZB/SRC)-SLR-GEN-GEN-S1-S2-S3-S4-S5-S6-S7-S8-S9-S10-PC-S11-S12-A1-B1-B2-B3-B4-GEN-SLR..(23 Coaches)....Please update the same.