Hi Salman,
It all depends on how big the company's organization and project, in smaller company they tend to combine the roles interactively from planning to control while in bigger one's thay have a department for project control and planning department.
During my stint in Nigeria with offshore/subsea engineering and fabrication work we have a planning department which tends to cover from tender to monitoring the project status as based on the plan or baseline schedules and alerts or notify the team if there is any slippage or anything that can delay the schedule. While the project control tends to lean more on cost, i.e. resources, equipment, tools, materials, production productivity, and etc. and the two works closely with contracts, estimating, engineering, accounts, and operation group.
Regards,
WSB