The protesters paraded through the capital with banners saying "no to paying the IMF" and "no to an IMF deal", a sign of rising tension in the South American nation over the tentative agreement struck late last month.
Argentina and the IMF announced a breakthrough in talks in late January to revamp a failed 2018 loan, which would see debt payments pushed back but involve pledges to meet certain economic targets agreed with the lender.
That agreement still needs details ironed out and approval from both Argentina's Congress and the IMF board.
"They want us to pay with more (fiscal) adjustments, with more precariousness and taking more out of us, that is why we cannot allow the submission of our people to the designs of the IMF."
IMF chief Kristalina Georgieva said last week that while an agreement had been reached in principle with Argentina on a new standby loan, "hard work" still lay ahead.
In Argentina, splits have appeared in the ruling Peronist coalition over the deal, with one prominent lawmaker stepping down from his position in Congress in opposition to it.
Juan Carlos Giordano, a representative for a leftist group in the march, said that the debt deal was akin to making working class people foot the bill and that the funds should be used to pull people out of poverty.
"The aim is to defend wages, defend work so that the money goes to combat social ills," he said, blaming the previous government of conservative Mauricio Macri for taking on the IMF debt.
"We are marking a path. The path of no submission, no to resignation, and no to the IMF."
To read the full story, Subscribe Now at just Rs 249 a month
Already a subscriber? Log in
Subscribe To BS Premium
₹249
Renews automatically
₹1699₹1999
Opt for auto renewal and save Rs. 300 Renews automatically
₹1999
What you get on BS Premium?
- Unlock 30+ premium stories daily hand-picked by our editors, across devices on browser and app.
- Pick your 5 favourite companies, get a daily email with all news updates on them.
- Full access to our intuitive epaper - clip, save, share articles from any device; newspaper archives from 2006.
- Preferential invites to Business Standard events.
- Curated newsletters on markets, personal finance, policy & politics, start-ups, technology, and more.
Need More Information - write to us at assist@bsmail.in