The no-cash, no commercial sales policy of the barter page was Ms Dutta's concept, responding to the lack of money and jobs as Covid-19 travel and trade restrictions set off economic shocks for Fiji and many other Pacific nations.
"I needed to do something positive and constructive...like most people, I was confused, scared of all the uncertainties, frustrated at people not following the directives and empty from not being able to spend time with family and friends," she said in a response sheet to the flood of media requests she's been taking.
Taking action became a way to find peace and "focus on helping and being kind, rather than just being angry."
Last month, as the impacts from thousands without paid work began to crunch on household spending, Ms Dutta started thinking about an easy to use barter network built on a practice many in Fiji were already familiar with.
The aim was to grow cash-free, direct trading in food and pre-loved items between people, to help use what money they could save for bills such as rent, utilities and transport.
"We have all been bartering and sharing one way or another most of our lives, whether within our families, in our communities- this (Facebook) space just helps people connect and exchange from a wider pool," Ms Dutta said.
She launched Barter for a Better Fiji on 21 April and watched the membership hit more than 60,000 members and over 300,000 posts in the space of a few days.
Fiji news coverage of the closed group page helped spread the word, businesses were pitching free services and delivery, and same-name barter movements in the Solomon Islands, Papua New Guinea and Samoa also popped up on Facebook as news of the page spread. Ms Dutta said it was a good thing.
"The response has been tremendous, unexpected, overwhelming. The way it's grown is something I couldn't even imagine."
From trades offering 100 dalo tops for a traditional voivoi mat, fresh coconuts for cans of RTD woodstock, and an entire infant clothing wardrobe for a pie, the Barter for a Better Fiji page was a dynamic and colourful trading post which retained a unique Fiji flavour.
"This page is doing wonders and a lot of people are benefiting," said first time trader Sheenal Chand. She was happy to swap a bag of food items and baby diapers for a puppy, and made a new friend in the process.
Not everyone came with a specific request. One Suva electrician offered free electrical wiring and repairs "for people in need- just bless me and my family in return", according to his post.
A young mother was flooded with a wave of support and gifts when she put up her post. She had asked for anyone willing to provide tamarind so she could prepare chutneys to sell and keep her children fed.
The page also provided a space for giving between those who have the means, to those who post seeking support.
Offers from people willing to provide half the income gained from clearing and planting vacant land were also on the closed page.
Managing the page has required more moderators to keep on top of messages and posts. Handy guidelines setting age limits, cautioning traders on hygiene and physical distancing are part of the visual guides.
For Ms Dutta, the primary reason for setting up a barter page to help Fiji's people cope without cash through Covid-19 times, had gone beyond basic needs and swapping pre-loved gear, to growing a wave of positivity, kindness, and connection.
She said technical issues aside, that's the focus she wanted to continue.