(Bloomberg) -- The largest single investor in IdeaForge Technology Ltd. is doubling down on India’s drone-making sector after an early bet on the Mumbai-listed company generated a return of almost 600%.Most Read from BloombergAsia’s Richest Families Fuel Race for Lucrative Finance JobsUS, Europe Are Growing Alarmed by China’s Rush Into Legacy ChipsCharles Koch-Tied Group Seeks to Block Trump From GOP NominationLots of US Homeowners Want to Move. They Just Have Nowhere to GoA 5% US Mortgage Rate