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Other usage of this rake on rest of the four days could be
1)This train's frequency can be increased too
i.e Saturday departure from LTT and Sunday arrival at nzm, then will be trailed by MAS NZM Garibrath towards Delhi and on sunday, it has to be trailed by Secunderabad rajdhani towards Bhopal-Mumbai like duronto do.
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OR
2) LTT-Haridwar AC Express on Friday 12171/12172 frequency will be increased by one day.
OR
3) LTT-MAS AC Express* on friday as there are only three trains from Mumbai to Chennai that run jam packed.
Halts can be Kalyan, Pune, Solapur, Wadi, Raichur, Guntakal, Tadipatri, Reingunta, and Arakkonam.
OR
4) LTT-Howrah AC Express*(reincarnation of Jnaneswari Super Deluxe Express full ac one) sharing timeslot with Mumbai-Howrah-Pune Duronto that runs except on Friday from Pune/CST and from Howrah, all days except sunday. so, this rake can depart LTT on Friday reach Howrah on Saturday and depart from Howrah on Sunday, finally arriving LTT on Monday and departing as 22109 on tuesday. I know LTT-ALD Duronto express too run on Friday but this train can trail ALD duronto upto BSL just like Allahabad duronto trails Pune-Howrah Duronto from Manmad to BSL.
Stoppage and timings can be :-
LTT 17:30
Kalyan 18:15 18:20
Bhusawal 11:30 11:40
Nagpur 4:30-4:45
Bilaspur 9:30-9:40
Rourkela 13:30-13:40
Kharagpur 17:55-18:00
Howrah 19:40
Kalyan halt wont affect fast line local as after Howrah/ALD Duronto there is period of 10-15 mins after which 15-car CSTM-Kalyan Local arrives kalyan at 18:20
Rourkela because it is nearest to Hatia as there are less trains to ranchi from mumbai, hence, this halt)