| Station | Scheduled Arr/Actual Arr | Arrived | Scheduled Dep/Actual Dep | Departed | Sch Arr Date/Act Arr Date | Day | Dist. | Delay Status |
| [BJU]BARAUNI JN | Source/00:00 | Yes | 22:50/22:50 | Yes | 3 Sep 2018/3 Sep 2018 | 1 | 0 | 0 mins late |
| [SPJ]SAMASTIPUR JN | 23:45/23:50 | Yes | 23:50/23:55 | Yes | 3 Sep 2018/3 Sep 2018 | 1 | 51 | 5 mins late |
| [MFP]MUZAFFARPUR JN | 00:35/01:08 | Yes | 00:40/01:15 | Yes | 4 Sep 2018/4 Sep 2018 | 2 | 103 | 33 mins late |
| [HJP]HAJIPUR JN | 01:35/02:12 | Yes | 01:40/02:40 | Yes | 4 Sep 2018/4 Sep 2018 | 2 | 157 | 37 mins late |
| [SEE]SONPUR JN | 01:50/02:56 | Yes | 01:52/02:58 | Yes | 4 Sep 2018/4 Sep 2018 | 2 | 162 | 66 mins late |
| [CPR]CHHAPRA | 03:00/04:15 | Yes | 03:05/04:20 | Yes | 4 Sep 2018/4 Sep 2018 | 2 | 216 | 75 mins late |
| [SV]SIWAN JN | 03:50/05:15 | Yes | 03:55/05:20 | Yes | 4 Sep 2018/4 Sep 2018 | 2 | 276 | 85 mins late |
| [BTT]BHATNI JN | 04:30/05:55 | No | 04:35/06:00 | No | 4 Sep 2018/4 Sep 2018 | 2 | 325 | 85 mins late |
| [DEOS]DEORIA SADAR | 04:52/06:17 | No | 04:57/06:22 | No | 4 Sep 2018/4 Sep 2018 | 2 | 346 | 85 mins late |
| [GKP]GORAKHPUR | 06:20/07:03 | No | 06:35/07:18 | No | 4 Sep 2018/4 Sep 2018 | 2 | 396 | 43 mins late |
| [KLD]KHALILABAD | 07:15/07:58 | No | 07:17/08:00 | No | 4 Sep 2018/4 Sep 2018 | 2 | 430 | 43 mins late |
| [BST]BASTI | 07:41/08:24 | No | 07:44/08:27 | No | 4 Sep 2018/4 Sep 2018 | 2 | 460 | 43 mins late |
| [MUR]MANKAPUR JN | 08:28/09:11 | No | 08:30/09:13 | No | 4 Sep 2018/4 Sep 2018 | 2 | 521 | 43 mins late |
| [GD]GONDA JN | 09:00/09:38 | No | 09:05/09:43 | No | 4 Sep 2018/4 Sep 2018 | 2 | 549 | 38 mins late |
| [BBK]BARABANKI JN | 10:25/10:49 | No | 10:27/10:51 | No | 4 Sep 2018/4 Sep 2018 | 2 | 638 | 24 mins late |
| [BNZ]BADSHAHNAGAR | 11:01/11:22 | No | 11:03/11:24 | No | 4 Sep 2018/4 Sep 2018 | 2 | 662 | 21 mins late |
| [LJN]LUCKNOWJN | 11:30/11:47 | No | 11:50/12:07 | No | 4 Sep 2018/4 Sep 2018 | 2 | 674 | 17 mins late |
| [ON]UNNAO JN | 12:40/12:53 | No | 12:42/12:55 | No | 4 Sep 2018/4 Sep 2018 | 2 | 730 | 13 mins late |
| [CNB]KANPUR CENTRAL | 13:17/13:22 | No | 13:22/13:27 | No | 4 Sep 2018/4 Sep 2018 | 2 | 748 | 5 mins late |
| [PHN]POKHRAYAN | 14:19/14:24 | No | 14:21/14:26 | No | 4 Sep 2018/4 Sep 2018 | 2 | 806 | 5 mins late |
| [ORAI]ORAI | 14:55/14:57 | No | 15:00/15:02 | No | 4 Sep 2018/4 Sep 2018 | 2 | 853 | 2 mins late |
| [JHS]JHANSI JN | 16:45/16:45 | No | 16:55/16:55 | No | 4 Sep 2018/4 Sep 2018 | 2 | 967 | 0 mins late |
| [LAR]LALITPUR | 17:49/17:49 | No | 17:51/17:51 | No | 4 Sep 2018/4 Sep 2018 | 2 | 1056 | 0 mins late |
| [BPL]BHOPAL JN | 21:10/21:10 | No | 21:15/21:15 | No | 4 Sep 2018/4 Sep 2018 | 2 | 1257 | 0 mins late |
| [ET]ITARSI JN | 22:55/22:55 | No | 23:05/23:05 | No | 4 Sep 2018/4 Sep 2018 | 2 | 1348 | 0 mins late |
| [GDYA]GHORADONGRI | 00:08/00:08 | No | 00:09/00:09 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1418 | 0 mins late |
| [BZU]BETUL | 00:52/00:52 | No | 00:55/00:55 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1455 | 0 mins late |
| [AMLA]AMLA JN | 01:19/01:19 | No | 01:22/01:22 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1478 | 0 mins late |
| [PAR]PANDHURNA | 02:16/02:16 | No | 02:19/02:19 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1542 | 0 mins late |
| [NGP]NAGPUR | 03:50/03:50 | No | 04:00/04:00 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1645 | 0 mins late |
| [SEGM]SEVAGRAM | 04:57/04:57 | No | 05:00/05:00 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1722 | 0 mins late |
| [HGT]HINGANGHAT | 05:38/05:38 | No | 05:40/05:40 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1759 | 0 mins late |
| [CD]CHANDRAPUR | 06:55/06:55 | No | 06:58/06:58 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1843 | 0 mins late |
| [BPQ]BALHARSHAH | 08:05/08:05 | No | 08:35/08:35 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1857 | 0 mins late |
| [SKZR]SIRPUR KAGAZNGR | 09:25/09:25 | No | 09:26/09:26 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1926 | 0 mins late |
| [BPA]BELAMPALLI | 10:03/10:03 | No | 10:04/10:04 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1965 | 0 mins late |
| [MCI]MANCHERAL | 10:19/10:19 | No | 10:20/10:20 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1984 | 0 mins late |
| [RDM]RAMGUNDAM | 10:29/10:29 | No | 10:30/10:30 | No | 5 Sep 2018/5 Sep 2018 | 3 | 1998 | 0 mins late |
| [WL]WARANGAL | 12:08/12:08 | No | 12:10/12:10 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2099 | 0 mins late |
| [KMT]KHAMMAM | 13:36/13:36 | No | 13:37/13:37 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2206 | 0 mins late |
| [BZA]VIJAYAWADA JN | 15:50/15:50 | No | 16:05/16:05 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2305 | 0 mins late |
| [CLX]CHIRALA | 17:18/17:18 | No | 17:19/17:19 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2394 | 0 mins late |
| [OGL]ONGOLE | 17:59/17:59 | No | 18:00/18:00 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2444 | 0 mins late |
| [NLR]NELLORE | 19:19/19:19 | No | 19:20/19:20 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2560 | 0 mins late |
| [GDR]GUDUR JN | 20:53/20:53 | No | 20:55/20:55 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2598 | 0 mins late |
| [MAS]CHENNAI CENTRAL | 23:20/23:20 | No | 23:50/23:50 | No | 5 Sep 2018/5 Sep 2018 | 3 | 2735 | 0 mins late |
| [KPD]KATPADI JN | 01:35/01:35 | No | 01:40/01:40 | No | 6 Sep 2018/6 Sep 2018 | 4 | 2871 | 0 mins late |
| [JTJ]JOLARPETTAI | 03:08/03:08 | No | 03:10/03:10 | No | 6 Sep 2018/6 Sep 2018 | 4 | 2954 | 0 mins late |
| [SA]SALEM JN | 04:43/04:43 | No | 04:45/04:45 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3075 | 0 mins late |
| [ED]ERODE JN | 06:00/06:00 | No | 06:10/06:10 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3137 | 0 mins late |
| [TUP]TIRUPPUR | 06:43/06:43 | No | 06:45/06:45 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3187 | 0 mins late |
| [CBE]COIMBATORE JN | 07:35/07:35 | No | 07:40/07:40 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3238 | 0 mins late |
| [PGT]PALAKKAD | 08:52/08:52 | No | 08:55/08:55 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3292 | 0 mins late |
| [OTP]OTTAPPALAM | 09:19/09:19 | No | 09:20/09:20 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3323 | 0 mins late |
| [SRR]SHORANUR JN | 09:55/09:55 | No | 10:15/10:15 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3334 | 0 mins late |
| [WKI]WADAKANCHERI | 10:34/10:34 | No | 10:35/10:35 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3351 | 0 mins late |
| [TCR]THRISUR | 10:52/10:52 | No | 10:55/10:55 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3367 | 0 mins late |
| [IJK]IRINJALAKUDA | 11:19/11:19 | No | 11:20/11:20 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3391 | 0 mins late |
| [CKI]CHALAKUDI | 11:27/11:27 | No | 11:28/11:28 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3397 | 0 mins late |
| [AFK]ANGAMALI | 11:44/11:44 | No | 11:45/11:45 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3413 | 0 mins late |
| [AWY]ALUVA | 11:58/11:58 | No | 12:00/12:00 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3422 | 0 mins late |
| [ERN]ERNAKULAM TOWN | 12:28/12:28 | No | 12:30/12:30 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3439 | 0 mins late |
| [ERS]ERNAKULAM JN | 13:00/13:00 | No | Destination/00:00 | No | 6 Sep 2018/6 Sep 2018 | 4 | 3441 | 0 mins late |
Live Train Status of 12521 - RAPTI SAGAR EXP.: This train runs between BARAUNI JN (BJU) and ERNAKULAM JN (ERS). It covers total distance of 3441 kilometers and arrives its destination on day 4. It departs from its source station BARAUNI JN (BJU) at 22:50 and reaches its destination ERNAKULAM JN (ERS) at 13:00 on 4 day. There are 63 halts in its route.