Poorabiya Express: कोसी की शान से दिल्ली महान तक - Md Rashid Alam

WAG7, WAG5, WAM4, WAP4 are still in use and WAG7 is usually used as a backup.

Even some short-distance passenger trains have WAG7 as a regular connection. But that will stop after some time.

Locos typically run for 25-35 years so by 2040, we won't see such locos.

The same goes for ICF coaches. Production stopped a long time ago but they are still being used, but by 2040, they will disappear.