BluSmart, India’s all-electric cab-hailing startup that was once seen as an emerging rival to Uber, appears to have suspended service in some cities just as the country’s market regulator launched a probe into Gensol Engineering, the publicly listed company that shares two of its co-founders. The cab service, which had been operating in Delhi-NCR, Bengaluru, and Mumbai, no longer shows available slots to many riders in these cities. Delhi Airport also issued an advisory that BluSmart’s service h...