The tanker lorry operators are on strike demanding withdrawal of the Transport Commissioner's stipulations that tanker lorries should have two drivers and a helper while criss-crossing the state.
The lorries are also not supposed to ply between 8 am and 11 am and between 4 pm and 6 pm.
The strike is being organised by All Kerala LPG Truck and Tanker lorry dealers, owners and workers co-ordination committee.
Tankers transporting petrol, diesel, kerosene, aviation fuel and LPG are participating in the strike.