I certainly feel there is no need to increase the travel time of Chennai Rajdhani here in UP direction because here she is an elderly rajdhani, so even if LTT NZM AC was Rajdhani, this change was certainly not desirable.
But still, atleast in UP direction, MAS rajdhani seems to be reason causing delay in AC exp
Changes should be made in the timings of AC Express itself i.e it should depart after Mas Rajdhani from Nizamuddin.
4...
more... pm-4:30pm is time period reserved for Mahakaushal Express and Mumbai Rajdhani Express.
so, LTT AC Express can depart NZM at 4:10 pm and still there would be sufficient time gap between the speed king 12952 and her i.e of 25-30 mins.
Mahakaushal can be made to depart NZM at 4:15 pm, that too will not affect the speed run of 12952.
Then there needs to be exchange of timings of halts at AGC, GWL, JHS, BPL between 22110 and 12434.
Hence, for 22110 timings could be :-
Nizamuddin 16:10 pm
Agra cantt 18:08-18:10
Gwalior 19:20-19:22
Jhansi 20:40-20:45
Bhopal 23:45-23:55
Bhusawal 5:35-5:40
Nasik 8:17-8:20
Kalyan 10:53-10:55
LTT 11:50
Above thing also seems to be diificult to be implemented then simply departure time of 12910 and 22110 should be exchanged as Chennai Rajdhani will never be allowed to overtake Bandra Garib Rath and LTT AC Express running before Bandra GR can safely maintain it's timings without any fear of overtake by Mas Rajdhani. There will be time gap of extra 10 mins between AC exp and Raj i,e total time gap of 20 mins of NZM departure.
i.e 22110 departure from NZM should be at 15:40 and of BDTS GR at 15:50
Rest all the halt timings of AC Express can remain same except for LTT arrival which should be made 11:40 am because after 10 am, I dont think there is much office going or college going people's rush, so, 22110 should be speeded up a bit after Kalyan i.e Kalyan to LTT, it should take 45 mins like Haridwar-LTT AC unlike its present 57 mins travel.
so, the timings can be :-
Nizamuddin 15:40 pm
Agra cantt 17:58-17:59
Gwalior 19:06-19:08
Jhansi 20:27-20:32
Bhopal 23:35-23:45
Bhusawal 5:35-5:40
Nasik 8:17-8:20
Kalyan 10:53-10:55
LTT 11:40