Huge & good condition of diesel loco infrastructure, 5800 Dloco at working condition.
That's why plane revised as yearly target set & completion.
And also the target is not achievable.
Some factors to be count...
1....
more... Eloco availability+Production rate
2. Power availability issue + TSS build up delays, even electrification of some sections completed about 1 year ago but still can't utilize at full phase due to power shortage.
3. New Dloco factory at Bihar, 1000 loco will built by GE