yes more such examples are there......Trn No. 15929 Chennai Egmore Dibrugarh Exp while travelling from Asansol to Durgapur does stop @ Undal Jn....for carrying the Diesel loco till DGR..7 mts it'll stop from Andal it'll go around 16 km till DGR,there it'll stop for 25 mts for detaching the WAP 4 Loco..because WDM 3A UDL is already attached to it then it'll again come back those 16 km from Durgapur to Andal but this time it doesnt stop & goes towards Rampurhat side.