Is it true that Israel has sold the Haifa port to Adani Ports?

That is absolutely correct. Israel will sell Haifa Port, a major trade hub on its Mediterranean coast, to Adani Ports. While Adani Ports will hold a 70% stake in the company, the balance 30% will be held by Gadot, an Israeli chemicals and logistics company. This move will lower import prices and shorten long wait times at Israeli harbours. Nearly 98% of all goods move in and out of Israel via sea route.