diff --git a/docs/changelog/CHANGELOG.md b/docs/changelog/CHANGELOG.md
index 10f989cbd..e3ac239ba 100644
--- a/docs/changelog/CHANGELOG.md
+++ b/docs/changelog/CHANGELOG.md
@@ -46,6 +46,7 @@ See also [LTS releases](https://docs.victoriametrics.com/lts-releases/).
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert/), [vmctl](https://docs.victoriametrics.com/vmctl/) and snapshot API: verify correctness of URLs provided via cmd-line flags before executing HTTP requests. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6740) issue for details.
 * BUGFIX: [vmalert](https://docs.victoriametrics.com/vmalert): reduce memory usage when parsing responses with big number of metrics in response. The memory usage was increased in [v1.102.0-rc1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.102.0-rc1) after attempt to reduce CPU usage for heavy loaded vmalerts.
 * BUGFIX: all VictoriaMetrics components: forcefully set owner/group for release tars to 1000:1000. This helps to avoid unpacking [issues](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6788) on systems with limitations around UID:GID configuration. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6846).
+* BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): properly register index metrics for previous index part. See this [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6868) for details.
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): Removes the fallback to global index search when the search using per-day index fails due to too many time series found (the global index will fail anyway with the same error and so the fallback is not needed and only slows down the search). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6836) for details.
 * BUGFIX: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): fix metric names registering in the per-day index for new dates for existing time series when making calls to `/tags/tagSeries` and `/tags/tagMultiSeries` handlers of [Grpahite API](https://docs.victoriametrics.com/#graphite-api-usage). See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6872/) for details.
 
diff --git a/lib/storage/index_db.go b/lib/storage/index_db.go
index 1381ddbc0..3a37ebb54 100644
--- a/lib/storage/index_db.go
+++ b/lib/storage/index_db.go
@@ -203,6 +203,16 @@ func (db *indexDB) scheduleToDrop() {
 
 // UpdateMetrics updates m with metrics from the db.
 func (db *indexDB) UpdateMetrics(m *IndexDBMetrics) {
+	// global index metrics
+	m.DeletedMetricsCount += uint64(db.s.getDeletedMetricIDs().Len())
+
+	m.IndexBlocksWithMetricIDsProcessed = indexBlocksWithMetricIDsProcessed.Load()
+	m.IndexBlocksWithMetricIDsIncorrectOrder = indexBlocksWithMetricIDsIncorrectOrder.Load()
+
+	m.MinTimestampForCompositeIndex = uint64(db.s.minTimestampForCompositeIndex)
+	m.CompositeFilterSuccessConversions = compositeFilterSuccessConversions.Load()
+	m.CompositeFilterMissingConversions = compositeFilterMissingConversions.Load()
+
 	var cs fastcache.Stats
 
 	cs.Reset()
@@ -213,8 +223,6 @@ func (db *indexDB) UpdateMetrics(m *IndexDBMetrics) {
 	m.TagFiltersToMetricIDsCacheRequests += cs.GetCalls
 	m.TagFiltersToMetricIDsCacheMisses += cs.Misses
 
-	m.DeletedMetricsCount += uint64(db.s.getDeletedMetricIDs().Len())
-
 	m.IndexDBRefCount += uint64(db.refCount.Load())
 	m.MissingTSIDsForMetricID += db.missingTSIDsForMetricID.Load()
 
@@ -224,16 +232,26 @@ func (db *indexDB) UpdateMetrics(m *IndexDBMetrics) {
 
 	m.MissingMetricNamesForMetricID += db.missingMetricNamesForMetricID.Load()
 
-	m.IndexBlocksWithMetricIDsProcessed = indexBlocksWithMetricIDsProcessed.Load()
-	m.IndexBlocksWithMetricIDsIncorrectOrder = indexBlocksWithMetricIDsIncorrectOrder.Load()
-
-	m.MinTimestampForCompositeIndex = uint64(db.s.minTimestampForCompositeIndex)
-	m.CompositeFilterSuccessConversions = compositeFilterSuccessConversions.Load()
-	m.CompositeFilterMissingConversions = compositeFilterMissingConversions.Load()
-
 	db.tb.UpdateMetrics(&m.TableMetrics)
 	db.doExtDB(func(extDB *indexDB) {
 		extDB.tb.UpdateMetrics(&m.TableMetrics)
+
+		cs.Reset()
+		extDB.tagFiltersToMetricIDsCache.UpdateStats(&cs)
+		m.TagFiltersToMetricIDsCacheSize += cs.EntriesCount
+		m.TagFiltersToMetricIDsCacheSizeBytes += cs.BytesSize
+		m.TagFiltersToMetricIDsCacheSizeMaxBytes += cs.MaxBytesSize
+		m.TagFiltersToMetricIDsCacheRequests += cs.GetCalls
+		m.TagFiltersToMetricIDsCacheMisses += cs.Misses
+
+		m.IndexDBRefCount += uint64(extDB.refCount.Load())
+		m.MissingTSIDsForMetricID += extDB.missingTSIDsForMetricID.Load()
+
+		m.DateRangeSearchCalls += extDB.dateRangeSearchCalls.Load()
+		m.DateRangeSearchHits += extDB.dateRangeSearchHits.Load()
+		m.GlobalSearchCalls += extDB.globalSearchCalls.Load()
+
+		m.MissingMetricNamesForMetricID += extDB.missingMetricNamesForMetricID.Load()
 		m.IndexDBRefCount += uint64(extDB.refCount.Load())
 	})
 }
@@ -3321,6 +3339,7 @@ func (s uint64Sorter) Len() int { return len(s) }
 func (s uint64Sorter) Less(i, j int) bool {
 	return s[i] < s[j]
 }
+
 func (s uint64Sorter) Swap(i, j int) {
 	s[i], s[j] = s[j], s[i]
 }