What is 'predatory pricing' that Swiggy, Blinkit, Zepto have been accused of?

A predatory pricing strategy refers to a pricing strategy in which goods or services are offered at a very low price point, with the intention of driving out competition. Predatory pricing is prohibited as it's considered an abuse of dominance. The All India Consumer Products Distributors Federation has urged CCI to probe Blinkit, Swiggy and Zepto for alleged predatory pricing.