Two tankers carrying liquefied petroleum gas (LPG), the key cooking fuel in India, appear to have made the Strait of Hormuz transit with transponders off on part of the route as dark activity rises among commercial shipping and a growing number of vessels exit the chokepoint. The Marshall Islands-flagged Symi LPG tanker appeared in the Gulf of Oman early on Thursday and is en route to Kandla, a port in western India, data on MarineTraffic showed. The vessel had departed Ras Laffan in Qatar more than two months ago, on March 6,…