He was speaking at a protest rally near Cochin refinery against the NDA government's decision to disinvest the public sector oil company BPCL.
Over 6,000 people took part in the rally addressed by Gandhi, who arrived here after winding up his three-day Wayanad constituency visit. "I will always be with you in fight against wrongdoings of this government," said Gandhi.
Gandhi, who was expected to return to Delhi on Saturday. Now he will return on Sunday morning.
The Congress has termed this disinvestment as "killing the golden goose". The Cochin refinery is part of BPCL.