cpanelsolr index file consuming more disk spaces

/home/cpanelsolr/server/solr/dovecot/data 26G index 36G index.1639815661 19G index.1642091194 3.4M index.1642091514 20G index.1645577810 4.0K index.1645578076 0 snapshot_metadata 7.1M tlog 99G total Is it possibile to delete other index files?