The goddess of instant gratification

She seems like a deity meant for the Gen Z. But Her temple has been in our city, if local legends are to be believed, for more than three centuries. It was news to me, and I am thankful to Ganesh Ramaswamy, who via email enquired if I knew anything about the Nimishamba Temple in George Town. The name stands for She who grants wishes within a minute. He had just returned from a visit to the Nimishamba Temple in Ganjam, Mysore (and not to be confused with the erstwhile Princely State in Odisha), and wondered if there was any connection between the two shrines. That set me off on a long chase, which ended in conjectures.