In a statement, LDF convener Vaikom Viswam said UDF in its two year rule had obliterated the achievements made during the previous LDF regime.
He alleged that the UDF government was attempting to implement 'neo-liberal' economic policies of the UPA government at the Centre.
"The government failed to check the rise of essential commodities price and did not interfere in the market as done in previous times.
The public sector Kerala State Road Transport Corporation was on the brink of collapse, he said and alleged that efforts were on to privatise water supply and electricity board.
LDF workers would wear black badges and stage protest demonstrations across Kerala, he added.