Thunbergia species- Nirvana Park, Powai, Mumbai

Id. of Flower : Attachments (1).  4 posts by 4 authors.

Pl. help in identifying these flowers on a climber.
Location –Nirvana Park, Powai, Mumbai
Date -29.03.2013

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Some species of Thunbergia (Acanthaceae).

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I also think it is a species of Thunbergia

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https://efloraofindia.com/efi/thunbergia-grandiflora/.

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Leaves are different.

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