On a personal note, I think instead of running this DD and ANVT LJN DD seperatly, one common DD (JP-LJN via NDLS-MB) should run.
This would more better connections from JP/AWR/DEC to GZB/MB/BE/LJN.
1 rake of NWR and 1 rake of NR , both will be maintained by each zones alternative day, like full day intercity with two rakes, 1 starting from JP, 1 from LJN,
This...
more... would also avoid early departure and late arrival of ANVT LJN DD at LJN as after these timings, it can easily depart around 8 AM, departing NDLS around 4PM, DEE around 4.35PM, arriving JP 9PM, just preponing the DEE JP section by 1 hour.
same case with JP LJN DD, can depart at 7.55AM, NDLS at 1PM and reaching LJN at 9PM.
on other hand, for 6AM travellers from JP, JP DEE special can be made too sun in present DD's slot...