A leading Indian environmental group is standing by its allegations of high pesticide levels in locally bottled Coke and Pepsi despite a barrage of denials by the US soft drink heavyweights.
"We have the right test methodology and the experience," the director of the New Delhi-based Centre for Science and Environment director Sunita Narain said in an interview Saturday.
"If we can drink them (Coke and Pepsi), we can test them," she said, adding the centre used an internationally accepted method for its analysis.
However she added the centre "is not worried" if its findings are proved wrong as its aim of focusing attention on India's lax nutrition safety standards has been achieved.
"When we released our study on pesticides in soft drinks, our objective was clear - we needed to prod action on regulations," she said.
The centre sparked uproar and drew international headlines with a study it released this month claiming high levels of toxic chemicals in 57 drink products taken from 25 Indian Coca-Cola and PepsiCo plants.
The report prompted southern Kerala state to ban Coke and Pepsi drinks while five other states barred them from sale in schools and government offices. A national ban was demanded by the federal opposition while some protesters went on cola-bottle smashing sprees.
The cola giants shot back with studies they say show their beverages comply not only with proposed new Indian safety standards but those of the European Union - the world's toughest. They also challenged the centre's test methods, calling them "prone to generating false results."
The companies, which control 80 percent of India's soft drinks market, have also taken out a slew of newspaper advertisements to reassure consumers the beverages are safe.
But on Saturday, the southern state of Karnataka filed a case against Coca-Cola under the Prevention of Food Adulteration Act, accusing it of selling products with pesticide levels beyond permissible limits.
State Health Minister R. Ashok said government-supervised tests at a "well-equipped" private lab found Coke products contained a pesticide called malathion which can cause breathing problems, vomiting and other ill effects.
The minister said other soft drinks sold in the state would also be tested for pesticides but did not mention Pepsi by name.
The centre said its study found Coca-Cola and Pepsi drinks made in India contained pesticide traces an average 24 times higher than allowed by new safety standards developed by the Bureau of Indian Standards but not yet law.
Such findings are "clearly unacceptable as we know pesticides are tiny toxins and impact (on) our bodies over time," said Narain.