Its a 16 coach passenger, during peak seasons become 18 coacher! Converting this to DEMU will require 2 rakes & a weekly day off for maintenance, practically not viable!

What is "useless" about this train? It is a highly popular service that invariably runs jampacked. Considering that it constantly needs to halt and accelerate, it makes perfect sense to provide it a reasonably powerful loco link.
It would be good if you were a little more careful with your language in future.

Hey you dont speak without understanding the point im mentioning a 4500 hp loco is a waste for this small train an alco is better alcos are very good in acceleration for 14 coach train. So you be careful before commenting anything without understanding the actual point. I think you still need to understand the sentences more powerful loco for a small train is not required doesnt mean that train is useless. There is no change in timings and speed of this train after emd was given so whats the use of giving a powerful loco. This loco can be used for some other express trains which are still running with alcos. So better understand the point and comment it will be better

But there is not change in timings or speed after emd is given so whats the use ok if this train is having more than 20 coaches then emd is required for 14 coaches alco is more than enough. First of all kjm is giving away some of its emds to other sheds to accommodate electric locos. Erode diesel shed also have less number of wdp4d if there are surplus locos they can provide emds to each and every diesel haulud train.