One thing unique about this train is :
It goes in the morning at about 6:30am as MAS-Tirupati Saptagiri Exp,returns by 12 noon as Tirupati-MAS express leaves for Tirupati 15 min later as MAS-Tirupati Express and again returns to Chennai at about...

One thing unique about this train is :
It goes in the morning at about 6:30am as MAS-Tirupati Saptagiri Exp,returns by 12 noon as Tirupati-MAS express leaves for Tirupati 15 min later as MAS-Tirupati Express and again returns to Chennai at about 9:00pm as Tirupati-MAS Saptagiri Express.

Yes. It has the WAM46P trailing behind it while going towards Tirupati (the WAM4 pushes it like a banker).On its return the WAM4 pulls it like any other train.Secondly, there is generally no loco change as the trip is only about 3 to 4 hours.

The WAM4 6P provides power both ways???. Does it have a loco change somewhere, or in betwee trips?

So in one direction, it would have a WAM4 6P trailing??? any particular reason for such a uniqueness?

this is a push pull train in the sense that there is always a WAM46P at one end, to eradicate the reversal process that takes place at Renigunta. Hence the train has a drivers cab like EMU's, at one end when proceeding in one direction and on the return...

this is a push pull train in the sense that there is always a WAM46P at one end, to eradicate the reversal process that takes place at Renigunta. Hence the train has a drivers cab like EMU's, at one end when proceeding in one direction and on the return it wud be lead by the WAM46P.

Is this a MEMU or push-pull train wit a name given to it?