Close to 300,000 protestors are expected to demonstrate outside PepsiCo and Coca-Cola plants in India tomorrow in a "Quit India" campaign.

The Research Foundation for Science, Technology and Ecology (RFSTE), which has been leading action against the soft drinks giants for a while now, said the protestors will form human chains outside 87 of the two companies' plants in the country.

RFTSE claims PepsiCo and Coca-Cola are selling drinks containing pesticides in India.

The soft drink giants Coca-Cola and PepsiCo were struck a blow in December with authorities ordering them to place labels on cans and bottles across the country which spell out the extent of pesticide residues, if any, in the soft drinks.

The ruling came after a legal battle prompted by a 2003 report that alleged that pesticide residue levels in randomly selected Coke and Pepsi bottles were 30 to 36 times higher than norms set by the European Union, due to the use of contaminated ground water.

The companies have always refuted the claims saying their products were safe and complied with all statutory requirements.

The drinks giants have also been under fire over allegations they are draining areas of groundwater from local villages to produce their soft drinks brands.