New Delhi, June 2 -- Tightening global supplies amid the West Asia conflict have pushed up prices of key raw materials used in cables and wires, increasing costs for a sector that supplies critical infrastructure projects across power, renewable energy, real estate and data centres, according to a report by Crisil Ratings.

The report said prices of copper and aluminium -- two major inputs for cable and wire manufacturers have risen 22-27 per cent, while the price of polyvinyl chloride (PVC), another key raw material, has increased by around 12 per cent over the last fiscal.

"At the same time, rise in realizations will also partly compensate for elevated prices of key raw materials due to their tightening global supply amid the West Asia...