The garden flower, Allamanda Cathartica also known as Yellow Bell, Golden Trumpet, Buttercup Flower or Har-kakra in Bengali. Photograph taken in mid-monsoon at Kolkata.
<a href="//commons.wikimedia.org/wiki/User:Gangulybiswarup" title="User:Gangulybiswarup">Biswarup Ganguly</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>