what is the meaning of pan-regional-empire

The pan-regional was used in the sense of the areas of empires spanning diverse regions. The dynasties like Cholas, Khaljis, Tughluqs and Mughals extended their empires pan-regional. Though, not all these empires were equally stable or successful. But pan-regional rule altered the character of the regions. Most of the regions across the subcontinent were left with the legacies of the big and small states that had ruled over them. The emergence of many distinct and shared traditions in governance the economy elite cultures and languages were some of the prominent factors that took place as a result of pan-regional rules.