Complex sentence: This group of temples is also unique in that both the Digambar and Shwetambar have temples on its hills and it been an important religious place for Jains since the 3rd century.
Split into simpler sentences: This group of temples is also unique in that both the Digambar and Shwetambar have temples on its hills. It has been an important religious place for Jains since the 3rd century.