Nanded Series -I

Our Nanded series - 1 is about to end... Here's the second last train I spotted in this trip, which was also in my 'ALCo hauled trains list' it's 11402 Adilabad-Mumbai CSMT Nandigram Express, which was then run between CSMT-NGP operated by CR zone.Later, it was short terminated at Adilabad After Covid-19 Pandemic, Train departs from Adilabad at 13:00hrs, A sleep breaker as it reaches CSMT around 5:30am., MLY ALCo twins powered it from ABD till MMR, at MMR traction was changed to electric, usually WCAM series loco...
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continued, now due to loco shortage it runs End to End Diesel, and now Power is Kalyan DLS homed HHP locomotives, and originates/terminates from Balharshah instead of Adilabad

DOC: 28/1/23. NED.

Hello everyone
I need a suggestion please read my query ..Quiry :-

Q.
A person books a PNR in 12420 Gomti Exp (Ndls to LKO ) for...
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25th May 24 .
His status is GNWL 25 ** (suppose )

He opted for vikalp in Shatabdi Express for Next Date & one Day more from the sch Departure date

Both the dates berths are Available in Shatabdi Express on 26th & 27th May ....

When the vikalp option is applied for the booked PNR


2 days before we found a PNR in same category it was for Tuesday boarding from Kanpur central to New Delhi
Gomti Exp vikalp option transferred to Vande bharat Exp ......

Now same thing I m asking as that time some of the members told me that
If berths are vacant then

Without chart preparation PNR gets transferred under vikalp option..........


Can one anyone give the right answer for my quiry ?.