BENGALURU -- Two of India's richest men are locked in a battle for cement supremacy as they snap up rivals to corner a soaring market fueled by a homegrown infrastructure boom.

Indian billionaire Kumar Mangalam Birla, left, is battling rival Gautam Adani for control of India's cement sector, the world's second-biggest. (Nikkei montage/Source photos by AP and Reuters)
Expansion by rivals could spur price cuts in world's second-biggest market