Malaysian telecoms firm Axiata Group Bhd (AXIA.KL) and Norway's Telenor ASA (TEL.OL) will merge their mobile operations in Malaysia in a $15 billion deal, forming a new market leader in the competitive Southeast Asian nation. The companies had said in April they were in advanced talks to merge Celcom Axiata Bhd and DiGi.Com Bhd (DSOM.KL), and each party would own 33.1% of the