The economic advisor to Greece's anti-austerity party SYRIZA told CNBC that Greece's international lenders, the troika, were "blackmailing" his country and not helping it to exit recession.
"The situation is not becoming better in Greece, we still have a very big recession for a fifth year…and this cannot go on," Yiannis Milios, economic advisor for the Coalition of the Radical Left (SYRIZA) told CNBC on Monday.
"What we see from the side of the troika and the Greek government is the continuation of the same policy which creates this negative cycle of recession, indebtedness and cuts which fuel recession…We need a change of policy we must come to a new era and try to boost growth," he told CNBC's "Worldwide Exchange."
(Read More: Portugal Fires Warning Shot for Austerity in Europe)
Milios' comments came as the Greek finance ministry decides whether the country's biggest lenders, the Greek National Bank and its subsidiary Eurobank, should be merged. International lenders raised concerns about their integration plans and so the lenders will be recapitalized separately, Reuters reported on Sunday, citing two bankers.
The economic advisor for SYRIZA, a party that fought against austerity measures in last year's general election, rejected the possibility of Greece being forced to leave the euro if it did not keep to the conditions of its bailout.