"A multinational corporation with a global presence should be much more aware of religious and cultural sensitivities, and how truly repelling such an advertisement could be to Hindus," she said.

Spanish Hindus demanding physical removal of all of the ads in Fuengirola, Spain have already met some success locally, HAF said.

The geographic reach of the advertisement campaign was unknown, and it is unclear if similar ads are running in other countries as well, it said.

"Burger King, in its efforts to drum up sales, seems to be have taken out of its marketing equation respect of ethno-religious sensitivities," Shukla said.

"We are determined to follow this issue to ensure that Burger King stays true to its stated commitment to diversity and inclusion as it reaches out to its global consumers," he said.