An Izzatnagar YDM4 waits for clearance into Aishbag station on a cold & hazy morning of February 2008. (Sachin Buddhisagar)

IZN YDM4 pulls in with Mailani-Aishbagh passenger into Sitapur. (Samar)

A scene never to be seen again: DG-PGT pass waits as its counterpart crosses it! Token exchange in progress! This MG section was closed few months back. Dr Akash Bang (Dr Akash Bang)

Kalakund's khalasi guides the Mhow shed YDM4 # 6427 to couple to the rear of the 458B Akola - Ratlam Fast Passenger. The loco would bank the 458B through the steep 10 Km long Patalpani ghat ahead. 28th June 2008 (Apurva Bahadur)

Another view of the entire rake as it takes the curve outside Indore (Abhijit)

The evening passenger service from Ratlam approaches Indore. Mhow's YDM4 6717 is in charge (Abhijit)

The Pink City Express pauses at Alwar(?) en route Delhi-Jaipur. 1979-02-21. YDM-4 #6299 built in March 1972. (David Churchill)

458-B passenger bound for Ratlam waits for a clearnce at Attar station on the Akola-Ratlam section. ()

With big brother BG swiftly encroaching its space, MHOW YDM-4 6660 leads the overnight passenger from Ratlam into Akola. (Bharath Moro)

Sabarmati's YDM4 6195 takes out the Ranuj passenger. Location near Khodiyar, Ahmedabad. (Abhijit Lokre)

YDM-4 #6414 reversing after arrival at Punalur. 2008-09-13, Bizzy (Bizzy Mishra)

The Little Green bug: YDM 6414 ready to depart from Punalur with the Punalur-Shencottai MG passenger. 2008-09-13, Bizzy (Bizzy Mishra)

Lost in the Greens: The Shencottai-Quilon MG passengers waiting at Tenmalai for a very green crossing. 2008-09-13, Bizzy (Bizzy Mishra)

so long, dear friend! As the day comes to an end, we bid farewell to YDM #6310 which hauled us back from Shencottai to Punalur. Seen here is the 6310 reversing at Punalur for it's final journey of the day. 2008-09-13, Bizzy (Bizzy Mishra)

Twin IZN YDM-4 locos (#6451 & #6558) waiting at Pilbhit Jn early in the morning, the first with Aishbag bound pass and the second is without load. (Rahul)