Complex sentence: He looted the lands he crossed all the way to Delhi, then plundered and burnt Delhi, collected and carried the wealth, captured women and slaves (particularly skilled artisans) back to Samarkhand.
Split into simpler sentences: He looted the lands he crossed all the way to Delhi, then plundered and burnt Delhi. Then he collected and carried the wealth, captured women and slaves (particularly skilled artisans) back to Samarkhand.