A reply from another thread ( https://groups.google.com/forum/?hl=en&fromgroups#!topicsearchin/indiantreepix/group:indiantreepix$20AND$20280920112102/indiantreepix/AtPREWVvrw0%5B1-25%5D ): "Dear friends, It is Allamanda cv.dwarf .widly used in landscaped gardens in and around Pune,Mumbai and Gujrat. There is another var. also used in same ways.It is Allamnda dwarf variegated.It has the leaves with gray or silvery tinge but the flowers are same as this. Allamanda cathartica is a climber while this is not a climber .It can grow up to one meter if it is not preunned.Generaly used in road side strips.It is a determinate type. Regards H S Bedekar. Ex.Chief Horticulturist, Reliance Ind Ltd."
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