Prem Durai Exports has tripled its production capacity and is aiming for 20m T-shirt exports by next year, Press Trust of India reported.

Tirupur-based Prem presently ships 5m T-shirts to Switzerland and a handful of other countries, the company's chairman S Duraiswamy was reported as saying.

The company is also said to be eyeing expansion in markets including Germany, France, and the US, following the expiration of World Trade Organization garment export quotas.