The food lovers are making a beeline to Tanya Gohil's stall called Devi's at Maltby Street market here.
Gohil's stall sells dishes like the "Mmmmumbai Grill" -- her take on a grilled club sandwich.
According to her, she was born with "the British devotion to Indian cooking", the London Evening Standard reported.
"If you have leftover curry and had too much to drink the night before, the first thing you do is create a toasted, buttered sandwich with curry, onion and cheese," she was quoted as saying.
And the Bombay sandwich is a famous street food staple.
"I wanted to create the most pimped-up version of the two," she added.
Gohil, who studied economics and development at Manchester University, has visited India twice. The first visit was to help a girls' education organisation and the second for road-testing recipes.
She aims to raise up to 20,000 pounds through crowd-funding to buy land in Jaisalmer on which to build a school.
"I am selling out every weekend, which is not something I expected. I have also been approached to do pop-ups in pubs around south London and I can't keep up. There is only one of me!"
Gohil is hopeful that her efforts will help bring about real change in India.
"This is not just about educating girls," she says. "It's about educating boys and men about the changes that need to happen. And change begins with education."