Train was introduced in 1992 as 6335/6336 GIMB-TVC EXP running via ST-BSR-KJM-TPT.
Coach composition: 1-2AC, 1-FC, 10-SL, 1-PC, 4-GN
LOCO (1992-99):
WDM2 VTA: GIMB-ADI
WCAM1: ADI-BSR
WCM1/WCG1:...
more...

BSR-PUNE
WDM2 ED: PUNE-TVC
Was extended to NCJ from 1998
6335 GIMB-NCJ EXP used to always run late sometimes even 14+ hours till it was diverted to Konkan Rail from 1999.

Train was introduced in 1986 as 937/938 ADI-COCHIN HT SF EXP. Originally running via ST-JL-DD-MMR-SBC-JTJ it was renumbered to 2637/2638 SF EXP from 1989 and was re-routed via BSR-KJM-TPT.
Interesting fact was that it used to share rakes of then 941/942 (2641/2642 and 6045/6046) MAS-ADI Navjivan EXP.
The 942 Navjivan EXP which used to arrive ADI in Tuesday evening became 937 ADI-COCHIN Exp of WED morning, to arrive CHTS on FRI at 8AM. Same rake used to leave CHTS on FRI at 18:30 and arrive ADI on SUN afternoon, to return MAS next...
more...

day as 941 Navjivan Exp.
Coach composition: 1-2AC, 12-SL, 1-PC, 3-GN
LOCO (1986-89): WDM2 ED ADI-CHTS, loco reversal at JL, SBC & JTJ
LOCO (1989-99):
WCAM1: ADI-BSR
WCM1/WCG1: BSR-PUNE
WDM2 ED: PUNE-CHTS
Diverted to Konkan Railway from 1999.

#trainhistory
This train, Popularly Known as Veraval Express, is the first Preferred train to Kerela from Gujarat
This train was Introduced as Ahmedabad Trivandrum Express, which have a good History of Extensions and some more
-
As...
more...

Ahmedabad Trivandrum Express, It used to go on a Different Route of via Vasai-Pune-Solapur-Guntakal-Dharmavaram-Krishnaraj apuram-Jollarpetai-Salem-Coimbatore-Thrissur alongwith Ahmedabad Cochin Express.
At That time, it Used to Stop only at Anand, Baroda, Surat, Balsad, Boisar, Vasai, Kalyan, Pune, Solapur, Wadi, Guntakal, Dharmavaram, Krshnarajapuram, Salem, Erode, Coimbatore, Palghat, Shoranur, Thrissur, Ernakulam Jn Southern( that time),and Kottayam.
Later it was extended to Rajkot as Rajkot Trivandrum Express as Superfast train for Some time with Number 2617/18 Rajkot Trivandrum Express, which is the Number of Mangala Express today, which was at that time, One Year Older to be Proposed to be Diverted to Konkan with Extension to Ernakulam.
-
After It was Extended to Rajkot, it was again extended to Hapa, and later to Veraval after Rajkot-Jetalsar-Veraval Gauge Conversion. After that it does not go Hapa.
It was Announced in Final Year Rail Budget 1998 For Diversion of these trains via Konkan, Implemented later in 2000-2001.
-
And For More Information, I tell you that Ahmedabad Cochin Express is today's 16337/38 Okha Ernakulam Express.