Hedychium stenopetalum

Hedychium stenopetalum Lodd., Bot. Cab. 20: t. 1902 1833. (Syn: Hedychium barbatum Wall. [Invalid]; Hedychium elatum var. orgyale Horan.);
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Bhutan to Indo-China: Assam, Bangladesh, East Himalaya, Myanmar, Thailand, Vietnam as per POWO;

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ID please from Jeypur RF, Assam:
Please identify this Zingiber species.
Plants big, 1-2m long, flowering in the month of May.
Photo taken from Jeypur RF, Assam

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Could be a species of Hedychium

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This might be Hedychium stenopetalum, but need to be conformed by others.

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I also think it is Hedychium stenopetalum, but I am still confused with H. gracilis. I am waiting for the explanation from the expertS.

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Yes, it is seems to be Hedychium stenopetalum.
This species is widely distributed i Northeast India.
This is the tallest species among the genus.

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References:
POWO