Complex sentence: These plaques are comparable to those found at other better-known sites such as Kaushambi and Ahichhatra, suggesting that there was an established communication link between, and common cultural heritage among these sites.
Split into simpler sentences: These plaques are comparable to those found at other better-known sites such as Kaushambi and Ahichhatra. This similarity suggests an established communication link and common cultural heritage among these sites.