Pictures you posted are of Polyalthia longifolia (we generally know as Ashok since childhood). The pictures I posted were of a tree of different genus i.e. Saraca (genus) asoca (species). Pradip Krishen has called it by a common name Sita-Ashok. But I believe many also know it by common name as simply Ashok, although there is no scientific close link between them.
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With regards,
J.M.Garg
"Enjoy every moment of your life"