Tesco will match the prices on over 2,000 Aldi and Lidl product lines in a sign of the grocer’s concern over the rising popularity of its discount rivals.

Tesco, which has a 30 per cent UK market share, will begin equalling prices this week. It has launched 300 “no frills” Lidl-style products and will add a further 200 to the range.

The low prices offered by discounters such as Aldi, which has a UK market share of only 3 per cent, have proved successful with middle-class shoppers.

Tesco has, until now, traditionally focused its attentions on the pricing activities of the UK big three – Asda, Sainsbury’s and Morrison’s.