The Congress will launch an all-out attack on the BJP government over price rise, unemployment and the GST hike on essential items with a big show of strength at Delhi`s Ramlila maidan on Sunday.

Former Congress president Rahul Gandhi and a host of party leaders would address the "Mehngai par halla bol" rally. Party workers from Delhi, Haryana and Uttar Pradesh, besides other parts of the country, would participate in it.