The tree had broad green leaves with bunches of maybe small seeds or fruits or buds of flowers hanging from it.

Plant with red flowers

Bougainvillea

Plenty of them in many of the trees

Many white coloured insects on the bark of a tree

Red flowers blossoming on gulmohar tree

The flowers have a sweet smell like jasmine. But the spines raise doubt - is it really wild jasmine or is it instead bush plum?