Erythrina variegata and E. indica are synonymous. There is however a variety with variegated leaves. I've seen it in cultivation only so far and the flowers are white.
It's difficult to be completely certain of the identity of the images because this kind of striation is sometimes, rarely, seen in E stricta.
Usually the prickles of E. variegata are blackish and fewer in number.
Considering the pictures are from Nagla there is a strong case for E. variegata because this species in the wild is restricted to coastal forests in this area.
It could be one or the other!!! We have to wait until flowering time.
Where exactly is the tree, Dinesh?
regards
Radha