Thanks (^) - o ancient druid of the far north
Sugarloaf is a recent name, fairly, though there would have been another name before it. You can still buy sugarloaf. Go in to a big Indian grocer and ask for Guur. Sold by the pound - also near the beginning of the film Ishqiya it shows the process of it being made, but they're calling it 'jaggery'. 150 languages in India, apparently ...