Investors Amin Shah, Aklis Shah, Monzur Ahmed and Mabs Noor, who all went to Dynevor School, expect to open the restaurant at the end of July.
And the four city businessmen behind the venture really hope it'll be second to naan.
Mr Noor said the quartet were determined to make it a success having signed a lease with Andgreen Properties, which spent around £1.7 million renovating the iconic building.
They are also planning to host a range of events at the adjoining hall, such as concerts, weddings, dinner dances, live music, community activities and wrestling.
"We are all local lads from Swansea," said Mr Noor. "We are taking a big risk. It's a big investment, and we are not big shots. But we think it's going to be worth it.
"It's a once in a lifetime opportunity. Mr Noor, 34, decided to invest after helping the others in the role of business consultant. He said it was his idea to name the restaurant Patti Raj — "raj" is the Hindi word for "rule".
Mr Noor said the four businessmen, from Townhill and Hafod, had more than 60 years' experience in catering and events management. Mr Ahmed will be executive chef. It is hoped around 15 jobs will be created.
Mr Noor, who grew up in Hafod and Mount Pleasant but now spends most of his time in Cardiff, said Patti Raj would serve traditional Indian food, with a "fusion twist".
He added: "We believe food should not just taste and smell good, it should look good. Gone are the days when you had a slop of curry in a bowl."
He added the 110-seat restaurant could be extended to the first floor, with an outdoor terrace. A smaller, daytime cafe is also planned at the venue, with seating outside.
Mr Noor thanked Swansea Council for its support. The public has had the chance to air its views with the authority's licensing department.
The revamped Patti has lain empty since the economic downturn. It was built in 1881 as the winter garden at Craig-y-Nos Castle, the Swansea Valley home of Victorian opera star Dame Adelina Patti. She left instructions that after her death the pavilion should be left to the people of Swansea. It was transported to Victoria Park in 1920.
Uplands councillor Peter May said its renovation was very welcome, adding: "We are relieved and pleased we have got some good tenants. We are particularly interested in the community use aspect of it.
"It's going to be a great facility, not just for Brynmill and Uplands residents, but for the whole bay."
19th May, South Wales Evening Post
