Complex sentence: The Bulgarian and Italian stone were shipped to the port of Kandla in Gujarat, where most of the carving was eventually completed, by over 1,500 craftsmen in a workshop specially set up for the project.
Split into simpler sentences: The Bulgarian and Italian stone were shipped to the port of Kandla in Gujarat. It was there that most of the carving was eventually completed, by over 1,500 craftsmen in a workshop specially set up for the project.