The strike was announced to press for various demands, including five-day banking, updation of pension and recruitment of more employees across branches, among others.
The court was hearing a PIL filed by Thiruvananthapuram resident Chandrachudan Nair against the strike called by joint trade unions last year.
The bus operators argued that multiple cases were being registered against a bus on the same day.
The bandh is in protest of police action on its leaders during a march to the Secretariat on Monday.
The delivery personnel allege that the companies have been depriving them of proper allowances. Their main demand is that the minimum wage for 2 km should be made Rs 25.
The strike is being held to demand adequate availability of regular petrol at pumps of Hindustan Petroleum and to protest the imposing of premium petrol, which is costlier.
On more than one occasion, the government had turned a deaf ear to the many demands put forward by medical professionals.
A Mananthavady Depot conductor has said four, including two KSRTC staff, attacked him the other day.
The KSRTC management has declared dies non against the striking employees.
However, the official holding the post, Rajesh Kumar Sinha, is currently out-of-station.