| Train | Source | Destination | Days Run from Thiruvananthapuram Central |
| 12507 - Aronai Express | Thiruvananthapuram Central (TVC) | Silchar (SCL) | Tue |
| # | Station | Arrival | Departure | Halt | Distance | Day |
| 1 | Thiruvananthapuram Central (TVC) | Source | 04:55 PM | 0 Mins | 0 KMs | 1 |
| 2 | Kollam Jn (QLN) | 05:50 PM | 05:53 PM | 3 Mins | 64 KMs | 1 |
| 3 | Kayankulam Jn (KYJ) | 06:33 PM | 06:35 PM | 2 Mins | 105 KMs | 1 |
| 4 | Mavelikara (MVLK) | 06:44 PM | 06:45 PM | 1 Mins | 113 KMs | 1 |
| 5 | Chengannur (CNGR) | 06:55 PM | 06:57 PM | 2 Mins | 126 KMs | 1 |
| 6 | Tiruvalla (TRVL) | 07:06 PM | 07:07 PM | 1 Mins | 135 KMs | 1 |
| 7 | Kottayam (KTYM) | 07:42 PM | 07:45 PM | 3 Mins | 160 KMs | 1 |
| 8 | Ernakulam Town (ERN) | 08:55 PM | 09:00 PM | 5 Mins | 220 KMs | 1 |
| 9 | Aluva (AWY) | 09:22 PM | 09:24 PM | 2 Mins | 237 KMs | 1 |
| 10 | Thrisur (TCR) | 10:13 PM | 10:16 PM | 3 Mins | 291 KMs | 1 |
| 11 | Palakkad Jn (PGT) | 12:07 AM | 12:10 AM | 3 Mins | 369 KMs | 2 |
| 12 | Coimbatore Jn (CBE) | 01:30 AM | 01:35 AM | 5 Mins | 423 KMs | 2 |
| 13 | Tiruppur (TUP) | 02:15 AM | 02:20 AM | 5 Mins | 473 KMs | 2 |
| 14 | Erode Jn (ED) | 03:10 AM | 03:15 AM | 5 Mins | 524 KMs | 2 |
| 15 | Salem Jn (SA) | 04:05 AM | 04:10 AM | 5 Mins | 583 KMs | 2 |
| 16 | Jolarpettai Jn. (JTJ) | 05:58 AM | 06:00 AM | 2 Mins | 708 KMs | 2 |
| 17 | Katpadi Jn (KPD) | 07:05 AM | 07:20 AM | 15 Mins | 792 KMs | 2 |
| 18 | Arakkonam Jn. (AJJ) | 08:18 AM | 08:20 AM | 2 Mins | 852 KMs | 2 |
| 19 | Perambur (PER) | 09:10 AM | 09:15 AM | 5 Mins | 915 KMs | 2 |
| 20 | Ongole (OGL) | 01:38 PM | 01:40 PM | 2 Mins | 1207 KMs | 2 |
| 21 | Vijayawada Jn (BZA) | 03:50 PM | 04:00 PM | 10 Mins | 1346 KMs | 2 |
| 22 | Rajamundry (RJY) | 06:08 PM | 06:10 PM | 2 Mins | 1495 KMs | 2 |
| 23 | Visakhapatnam (VSKP) | 09:25 PM | 09:45 PM | 20 Mins | 1696 KMs | 2 |
| 24 | Vizianagram Jn (VZM) | 10:38 PM | 10:40 PM | 2 Mins | 1757 KMs | 2 |
| 25 | Srikakulam Road (CHE) | 11:28 PM | 11:30 PM | 2 Mins | 1826 KMs | 2 |
| 26 | Palasa (PSA) | 12:38 AM | 12:40 AM | 2 Mins | 1899 KMs | 3 |
| 27 | Brahmapur (BAM) | 01:30 AM | 01:35 AM | 5 Mins | 1973 KMs | 3 |
| 28 | Balugan (BALU) | 02:27 AM | 02:29 AM | 2 Mins | 2049 KMs | 3 |
| 29 | Khurda Road Jn (KUR) | 03:20 AM | 03:30 AM | 10 Mins | 2119 KMs | 3 |
| 30 | Bhubaneswar (BBS) | 04:05 AM | 04:10 AM | 5 Mins | 2138 KMs | 3 |
| 31 | Cuttack (CTC) | 04:45 AM | 04:50 AM | 5 Mins | 2165 KMs | 3 |
| 32 | Jajpur K Road (JJKR) | 05:43 AM | 05:45 AM | 2 Mins | 2237 KMs | 3 |
| 33 | Bhadrakh (BHC) | 06:35 AM | 06:37 AM | 2 Mins | 2281 KMs | 3 |
| 34 | Balasore (BLS) | 07:20 AM | 07:22 AM | 2 Mins | 2340 KMs | 3 |
| 35 | Kharagpur Jn (KGP) | 08:55 AM | 09:05 AM | 10 Mins | 2461 KMs | 3 |
| 36 | Dankuni (DKAE) | 11:26 AM | 11:31 AM | 5 Mins | 2584 KMs | 3 |
| 37 | Bolpur S Niktn (BHP) | 01:07 PM | 01:09 PM | 2 Mins | 2715 KMs | 3 |
| 38 | Rampur Hat (RPH) | 01:59 PM | 02:01 PM | 2 Mins | 2775 KMs | 3 |
| 39 | Pakaur (PKR) | 02:44 PM | 02:46 PM | 2 Mins | 2830 KMs | 3 |
| 40 | Malda Town (MLDT) | 04:55 PM | 05:05 PM | 10 Mins | 2897 KMs | 3 |
| 41 | Kishanganj (KNE) | 07:13 PM | 07:15 PM | 2 Mins | 3043 KMs | 3 |
| 42 | New Jalpaiguri (NJP) | 08:50 PM | 09:00 PM | 10 Mins | 3130 KMs | 3 |
| 43 | Dhupguri (DQG) | 10:08 PM | 10:10 PM | 2 Mins | 3195 KMs | 3 |
| 44 | New Cooch Behar (NCB) | 11:03 PM | 11:05 PM | 2 Mins | 3256 KMs | 3 |
| 45 | New Alipurduar (NOQ) | 11:25 PM | 11:27 PM | 2 Mins | 3275 KMs | 3 |
| 46 | Kokrajhar (KOJ) | 12:25 AM | 12:27 AM | 2 Mins | 3353 KMs | 4 |
| 47 | New Bongaigaon (NBQ) | 01:15 AM | 01:25 AM | 10 Mins | 3384 KMs | 4 |
| 48 | Barpeta Road (BPRD) | 02:00 AM | 02:02 AM | 2 Mins | 3429 KMs | 4 |
| 49 | Rangiya Jn. (RNY) | 03:00 AM | 03:05 AM | 5 Mins | 3494 KMs | 4 |
| 50 | Kamakhya (KYQ) | 04:30 AM | 04:32 AM | 2 Mins | 3535 KMs | 4 |
| 51 | Guwahati (GHY) | 04:45 AM | 05:00 AM | 15 Mins | 3541 KMs | 4 |
| 52 | Hojai (HJI) | 06:50 AM | 06:52 AM | 2 Mins | 3677 KMs | 4 |
| 53 | Lumding Jn (LMG) | 08:00 AM | 08:10 AM | 10 Mins | 3722 KMs | 4 |
| 54 | Maibang (MBG) | 09:35 AM | 09:37 AM | 2 Mins | 3786 KMs | 4 |
| 55 | New Haflong (NHLG) | 10:50 AM | 10:55 AM | 5 Mins | 3821 KMs | 4 |
| 56 | Badarpur Jn. (BPB) | 02:00 PM | 02:15 PM | 15 Mins | 3892 KMs | 4 |
| 57 | Silchar (SCL) | 04:15 PM | Destination | 0 Mins | 3921 KMs | 4 |