This flowering plant is a species of Bougainvillea. It is known as Bougainvillea spectabilis also. Flowers of this plant are very beautiful.
Great Bougainvillea plant
This beautiful plant is a woody perennial vine with its stout spines.
Leaves of this plant are alternate, simple, ovate to somewhat elliptic, up to 10 cm long in size.
Scientific name: Bougainvillea spectabilis
Super cyclone Amphan affected Bangladesh and India.