Amaltas also known as Rajvraksha in Ayurveda has bright yellow flowers. It is considered as one of the most beautiful trees of India.
This is one of the trees in full bloom in the Bandra Kurla Complex.
Cassia fistula, also known as golden shower, purging cassia,
Indian laburnum, Kani Konna, Konna Poo or pudding-pipe tree, is a flowering
plant in the family Fabaceae. The species is native to the Indian subcontinent
and adjacent regions of Southeast Asia. It is the official state flower of
Kerala state in India. Wikipedia