YDM-2 locos being transported on BG flat cars. Photo by Vijay Balasubramanian.

Sabarmati YDM-4 at Akola with the Ajmer Passenger. Photo by Alok Patel, 2002.

YDM-4 hauling the Tambaram-Tanjore Passenger at Tanjore Jn. Photo by Vijay Aravamudhan, 2002.

A YDM-4 at Coonoor, with X class locos in the background. Photo by Tim Makins, March 2002.

YDM-4 #6131 at Pakala Jn. Photo by Tim Wakeman, 2000?

YDM-4 locos being sent to Malaysia in 2001. Photo provided by Apurva Bahadur.

YDM-4 #6184 at Delhi Sarai Rohilla. Photo by Andrew Jones, 2002.

YDM-4 #6184 at Udaipur. Photo by Andrew Jones, 2002.

YDM-4 #6259 at Botad Jn. Photo by Andrew Jones, 2002.

YDM-4 #6373 at Purna Jn. Photo by Andrew Jones, 2002.

YDM-4 #6426 at Bhavnagar. Photo by Andrew Jones, 2002.

YDM-4 #6426 at Dhola Jn. Photo by Andrew Jones, 2002.

YDM-4 #6577 at Junagadh Jn. Photo by Andrew Jones, 2002.

YDM-4 #6631 at Wansjaliya Jn. Photo by Andrew Jones, 2002.

YDM-3 locomotive #6074, preserved at Diesel Locomotive Works, Varanasi. Photo by Prakash Tendulkar, 2001.