Mumbai, May 17 :     Reliance Industries Ltd (RIL), through an associate company, has acquired DCL Polyesters Ltd (DCL) which will make it the fourth largest producer of polyester filament yarn (PFY) in the world. Synergy Synthetics Pvt Ltd (SSPL), a business associate of the Ambani flagship, has agreed to acquire a 25 per cent stake in DCL from its promoters, the Rajus and associates. SSPL will thereafter make an open offer to buy another 20 per cent of DCL's equity from the public and other shareholders through the tender method. RIL officials did not divulge the price at which the stake is being picked up either from the Rajus or the public. In recent times, the DCL Polyester scrip is quoting below par on the Bombay Stock Exchange (BSE). The Rs 10 share closed at Rs 4.65 on the BSE today. Terming the deal as an 'arrangement of using the polyester capacity of DCL,' RIL said its PFY capacity would increase to 3.60 lakh tonnes from 3.20 lakh tonnes. With the addition of DCL's facilities, Reliance will become the fourth largest producer of PFY in the world. Its share in the local market is also slated to rise from 33 per cent to over 38 per cent. Under the arrangement RIL will also supply the basic raw materials, purified terephthalic acid (PTA) and monoethylene glycol (MEG), for the entire capacity of DCL. This will obviously benefit Reliance's fibre intermediates business. For DCL, it marks an exit from an area where margins are consistently under pressure due to the strong presence of rivals such as RIL and Indo-Rama. The DCL unit located at Mauda near Nagpur has a PFY capacity of 40,000 tonnes. Its manufacturing facilities are based on the technology licensed by EMS Inventa of Germany. With this acquisition, Reliance said, it had reaffirmed its plans to emerge as the world's top three polyester producers by doubling its capacity over the next three years. Reliance, had in the past, acquired polyester capacities of ICI (30,000 tonnes), India Polyfibres Ltd (24,000 tonnes of PSF), J K Corp (43,000 tonnes) and Raymond Synthetics (66,000 tonnes). DCL Polyester, which was incorporated in 1986, adopted high speed direct spinning process using either PTA or DMT and MEG as raw materials with upgradation facilities to produce chips.