Please read full blog. It took a lot of effort in compiling it. Please suggest changes if any
TRAINS COVERING LONGEST AND SHORTEST DISTANCES CURRENTLY (CATEGORY WISE)
LONGEST RAJDHANI SERVICE: 12431/31 TVC NZM...
more... Rajdhani Express (2844 km)
SHORTEST RAJDHANI SERVICE: 12425/26 JAT NDLS Rajdhani Express (577 km)
LONGEST SHATABDI SERVICE: 12001/02 HBJ NDLS Shatabdi Express (709 km)
SHORTEST SHATABDI SERVICE: 12847/48 DGHA HWH Super AC Express (185 km)
LONGEST DURONTO SERVICE: 12283/84 ERS NZM Duronto Express (2639 km)
SHORTEST DURONTO SERVICE: 22201/02 SDAH PURI Duronto Express (518 km)
LONGEST GARIB RATH SERVICE: 12611/12 MAS NZM Garib Rath Express (2175 km)
SHORTEST GARIB RATH SERVICE: 12209/10 CNB KGM Garib Rath Express (413 km)
LONGEST HUMSAFAR SERVICE: 12503/04 AGTL BNC Humsafar Express (3534 km)
SHORTEST HUMSAFAR SERVICE: 22437/38 PRYJ ANVT Humsafar Express (622 km)
LONGEST ANTYODAYA SERVICE: 22877/78 HWH ERS Antyodaya Express (2288 km)
SHORTEST ANTYODAYA SERVICE: 15551/52 DBG BCY Antyodaya Express (405 km)
LONGEST TEJAS SERVICE: 22119/20 CSMT KRMI Tejas Express (552 km)
SHORTEST TEJAS SERVICE: 22671/72 MDU MS Tejas Express (493 km) [tied with 82901/02 MMCT ADI Tejas Express (493 km)]
LONGEST UDAY SERVICE: 22665/66 CBE SBC UDAY Express (419 km)
SHORTEST UDAY SERVICE: 22701/02 VSKP BZA UDAY Express (350 km)
LONGEST JAN SHATABDI SERVICE: 12051/52 DR MAO Jan Shatabdi Express (572 km)
SHORTEST JAN SHATABDI SERVICE: 15125/26 Kashi Patna Jan Shatabdi Express (233 km)
LONGEST S. KRANTI SERVICE: 12217/18 Kerala Sampark Kranti Express (3090 km)
SHORTEST S. KRANTI SERVICE: 15035/36 Uttaranchal Sampark Kranti Express (277 km) [15035/36-Slip Uttarakhand Sampark Kranti Express (238 km)]
LONGEST VANDE BHARAT SERVICE: 22435/36 NDLS BSB Vande Bharat Express (759 km)
SHORTEST VANDE BHARAT SERVICE: 22439/40 NDLS SVDK Vande Bharat Express (655 km)
LONGEST D. DECKER SERVICE: 22707/08 TPTY VSKP Double Decker Express (760 km)
SHORTEST D. DECKER SERVICE: 12985/86 DEE JP Double Decker Express (304 km)
LONGEST SUPERFAST SERVICE: 12507/08 TVC SCL Aronai Express (3925 km) [tied with 12515/16 TVC SCL Express (3925 km)] (to be replaced by Vivek Express when regular services are restored with regular train numbers)
SHORTEST SUPERFAST SERVICE: 22145/46 PVR MRJ SF Express (UR) (137 km)
LONGEST MAIL/EXP SERVICE: 15905/06 DBRG CAPE Vivek Express (4219 km) (to be replaced by Himsagar Express when normal services are restored with regular train numbers)
SHORTEST MAIL/EXP SERVICE: 19731/32 JP FL Express (UR) (55 km)
LONGEST PASSENGER SERVICE: 58111/12 TATA ITR Passenger (877 km)
SHORTEST PASSENGER SERVICE: 53375/76 BRKA SDWR Passenger (UR) (6 km)