Jewellery manufacturer, Thangamayil Jewellery Ltd. is looking to increase the number of its stores, reports say. It plans to open a store in Kovilpatti, Tamil Nadu on December 12, 2012. Also, it has identified opening another store on December 14, 2012, in Udumalpet, also in Tamil Nadu. With the two new additions, the number of its stores will increase to 25, reports add.