The selected eateries include the renowned Ada Scallion Pancake and Menghua Street Wonton that usually attracts large queues and often requires hours of waiting at their flagship eateries.

The legendary scallion pancake stall owner Wu Gencun, or Ada, has made his pancakes for over three decades. His store has attracted many expatriate customers as well as foreign tourists after the BBC interviewed him for a documentary "Taste of Shanghai."

The food stalls open from 4pm till 10pm between Friday and September 17 on the fifth-floor rooftop garden of the Global Harbor Mall on Zhongshan Road N.

The food carnival "taste in our childhood" aims to gather the most authentic, popular and classic local flavors for city gourmets, said Ye Kai, general manager of the mall.

"All the food must be cooked on site to ensure the freshness and food safety," Ye said.

The district's food and drug watchdog and the management of the mall will ensure all the selected eateries have essential certificates and a business license.

Commerce has become the second pillar industry of Putuo, whose shopping sales rank first among all the downtown districts. The district government spares no effort to help achieve the city government's ambition to develop Shanghai into an international consumption city.

To achieve that goal, Putuo is developing a batch of "landmark, radioactive, intelligent and comprehensive" shopping malls to gather headquarters of commerce industries and incorporate high technologies to shopping.

Two robots, for instance, made their debut at the opening ceremony of the shopping festival on September 8 at the Global Harbor Mall, and served customers by guiding the route or relaying some basic information.

The shopping and tourism economy has also been developing rapidly in recent years in Putuo. The district has had two five-star hotels, two four-star hotels and 75 travel agencies, including eight operating overseas travels.

"The district has received 10.95 million tourists in 2016 with tourism revenue of about 3.3 billion yuan," said Zhou. As of the end of July this year, Putuo has attracted 5.95 million tourists, a 6.2-percent increase on year.

Tourists have spent a lot on food, accommodation, traffic, shopping and entertainment, which brings 1.8 billion yuan in revenue to the district by July this year, a 5.68-percent increase on year, according to the tourism bureau.

Putuo has introduced many famous tourism brands to the Changfeng area in recent years, such as the Legoland Discovery Center, Joy City shopping mall and Shanghai Children's Library.

A lot of new attractions are on the way, such as a Hyatt Hotel project, a major renovation on the Joy City mall, an electric appliances museum of the Suning Group and an up-market Armara hotel from Singapore.

"Upon completion, these new attractions will bring more highlights to the tourism industry of Putuo," Zhou added.