Reliance IndustriesBSE -0.52 % has appointed Ajit Joshi as the CEO of its upcoming mega convention centre in Mumbai, picking the senior Tata Group executive who was the chief executive officer of Infiniti Retail that owns and manages the Croma chain of stores. Joshi will head the Dhirubhai Ambani International Convention and Exhibition Centre, which will be a mixed development project that will include retail space, service apartments and hospitality facilities.