This is Nesphostylis bracteata (Baker) D.Potter & J.J.Doyle
Many thanks to Shrikant Ingalhalikar for the ID.
commonly known as: Indian yam bean • Marathi : भेंद्री bhendri, रान पावटा raan pavata, थापटी शिंग thapati shing
Names compiled / updated at Names of Plants in India.