diff --git a/CHANGELOG_PENDING.md b/CHANGELOG_PENDING.md
index 1f7ae9a47..0c9618226 100644
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -132,3 +132,4 @@ Friendly reminder: We have a [bug bounty program](https://hackerone.com/tendermi
 - [evidence] \#6375 Fix bug with inconsistent LightClientAttackEvidence hashing (cmwaters)
 - [rpc] \#6507 fix RPC client doesn't handle url's without ports (@JayT106)
 - [statesync] \#6463 Adds Reverse Sync feature to fetch historical light blocks after state sync in order to verify any evidence (@cmwaters) 
+- [fastsync] \#6590 Update the metrics during fast-sync (@JayT106)
diff --git a/internal/blockchain/v0/reactor.go b/internal/blockchain/v0/reactor.go
index aa8208914..1fa997b17 100644
--- a/internal/blockchain/v0/reactor.go
+++ b/internal/blockchain/v0/reactor.go
@@ -6,6 +6,7 @@ import (
 	"time"
 
 	bc "github.com/tendermint/tendermint/internal/blockchain"
+	cons "github.com/tendermint/tendermint/internal/consensus"
 	"github.com/tendermint/tendermint/internal/p2p"
 	"github.com/tendermint/tendermint/libs/log"
 	"github.com/tendermint/tendermint/libs/service"
@@ -97,6 +98,8 @@ type Reactor struct {
 	// requestRoutine spawned goroutines when stopping the reactor and before
 	// stopping the p2p Channel(s).
 	poolWG sync.WaitGroup
+
+	metrics *cons.Metrics
 }
 
 // NewReactor returns new reactor instance.
@@ -109,6 +112,7 @@ func NewReactor(
 	blockchainCh *p2p.Channel,
 	peerUpdates *p2p.PeerUpdates,
 	fastSync bool,
+	metrics *cons.Metrics,
 ) (*Reactor, error) {
 	if state.LastBlockHeight != store.Height() {
 		return nil, fmt.Errorf("state (%v) and store (%v) height mismatch", state.LastBlockHeight, store.Height())
@@ -135,6 +139,7 @@ func NewReactor(
 		peerUpdates:   peerUpdates,
 		peerUpdatesCh: make(chan p2p.Envelope),
 		closeCh:       make(chan struct{}),
+		metrics:       metrics,
 	}
 
 	r.BaseService = *service.NewBaseService(logger, "Blockchain", r)
@@ -560,6 +565,8 @@ FOR_LOOP:
 					panic(fmt.Sprintf("failed to process committed block (%d:%X): %v", first.Height, first.Hash(), err))
 				}
 
+				r.metrics.RecordConsMetrics(first)
+
 				blocksSynced++
 
 				if blocksSynced%100 == 0 {
diff --git a/internal/blockchain/v0/reactor_test.go b/internal/blockchain/v0/reactor_test.go
index 841a4d64c..6020d4145 100644
--- a/internal/blockchain/v0/reactor_test.go
+++ b/internal/blockchain/v0/reactor_test.go
@@ -9,6 +9,7 @@ import (
 
 	abci "github.com/tendermint/tendermint/abci/types"
 	cfg "github.com/tendermint/tendermint/config"
+	cons "github.com/tendermint/tendermint/internal/consensus"
 	"github.com/tendermint/tendermint/internal/mempool/mock"
 	"github.com/tendermint/tendermint/internal/p2p"
 	"github.com/tendermint/tendermint/internal/p2p/p2ptest"
@@ -162,7 +163,8 @@ func (rts *reactorTestSuite) addNode(t *testing.T,
 		nil,
 		rts.blockchainChannels[nodeID],
 		rts.peerUpdates[nodeID],
-		rts.fastSync)
+		rts.fastSync,
+		cons.NopMetrics())
 	require.NoError(t, err)
 
 	require.NoError(t, rts.reactors[nodeID].Start())
diff --git a/internal/blockchain/v2/processor.go b/internal/blockchain/v2/processor.go
index c74f9ca9f..8a8b0e4af 100644
--- a/internal/blockchain/v2/processor.go
+++ b/internal/blockchain/v2/processor.go
@@ -182,6 +182,8 @@ func (state *pcState) handle(event Event) (Event, error) {
 			panic(fmt.Sprintf("failed to process committed block (%d:%X): %v", first.Height, first.Hash(), err))
 		}
 
+		state.context.recordConsMetrics(first)
+
 		delete(state.queue, first.Height)
 		state.blocksSynced++
 
diff --git a/internal/blockchain/v2/processor_context.go b/internal/blockchain/v2/processor_context.go
index 7385bcc6e..bc6852565 100644
--- a/internal/blockchain/v2/processor_context.go
+++ b/internal/blockchain/v2/processor_context.go
@@ -3,6 +3,7 @@ package v2
 import (
 	"fmt"
 
+	cons "github.com/tendermint/tendermint/internal/consensus"
 	"github.com/tendermint/tendermint/state"
 	"github.com/tendermint/tendermint/types"
 )
@@ -13,19 +14,22 @@ type processorContext interface {
 	saveBlock(block *types.Block, blockParts *types.PartSet, seenCommit *types.Commit)
 	tmState() state.State
 	setState(state.State)
+	recordConsMetrics(block *types.Block)
 }
 
 type pContext struct {
 	store   blockStore
 	applier blockApplier
 	state   state.State
+	metrics *cons.Metrics
 }
 
-func newProcessorContext(st blockStore, ex blockApplier, s state.State) *pContext {
+func newProcessorContext(st blockStore, ex blockApplier, s state.State, m *cons.Metrics) *pContext {
 	return &pContext{
 		store:   st,
 		applier: ex,
 		state:   s,
+		metrics: m,
 	}
 }
 
@@ -51,6 +55,10 @@ func (pc *pContext) saveBlock(block *types.Block, blockParts *types.PartSet, see
 	pc.store.SaveBlock(block, blockParts, seenCommit)
 }
 
+func (pc *pContext) recordConsMetrics(block *types.Block) {
+	pc.metrics.RecordConsMetrics(block)
+}
+
 type mockPContext struct {
 	applicationBL  []int64
 	verificationBL []int64
@@ -98,3 +106,7 @@ func (mpc *mockPContext) setState(state state.State) {
 func (mpc *mockPContext) tmState() state.State {
 	return mpc.state
 }
+
+func (mpc *mockPContext) recordConsMetrics(block *types.Block) {
+
+}
diff --git a/internal/blockchain/v2/reactor.go b/internal/blockchain/v2/reactor.go
index 50c9fa565..43a18e1d2 100644
--- a/internal/blockchain/v2/reactor.go
+++ b/internal/blockchain/v2/reactor.go
@@ -9,6 +9,7 @@ import (
 
 	bc "github.com/tendermint/tendermint/internal/blockchain"
 	"github.com/tendermint/tendermint/internal/blockchain/v2/internal/behavior"
+	cons "github.com/tendermint/tendermint/internal/consensus"
 	tmsync "github.com/tendermint/tendermint/internal/libs/sync"
 	"github.com/tendermint/tendermint/internal/p2p"
 	"github.com/tendermint/tendermint/libs/log"
@@ -55,13 +56,13 @@ type blockApplier interface {
 
 // XXX: unify naming in this package around tmState
 func newReactor(state state.State, store blockStore, reporter behavior.Reporter,
-	blockApplier blockApplier, fastSync bool) *BlockchainReactor {
+	blockApplier blockApplier, fastSync bool, metrics *cons.Metrics) *BlockchainReactor {
 	initHeight := state.LastBlockHeight + 1
 	if initHeight == 1 {
 		initHeight = state.InitialHeight
 	}
 	scheduler := newScheduler(initHeight, time.Now())
-	pContext := newProcessorContext(store, blockApplier, state)
+	pContext := newProcessorContext(store, blockApplier, state, metrics)
 	// TODO: Fix naming to just newProcesssor
 	// newPcState requires a processorContext
 	processor := newPcState(pContext)
@@ -81,9 +82,10 @@ func NewBlockchainReactor(
 	state state.State,
 	blockApplier blockApplier,
 	store blockStore,
-	fastSync bool) *BlockchainReactor {
+	fastSync bool,
+	metrics *cons.Metrics) *BlockchainReactor {
 	reporter := behavior.NewMockReporter()
-	return newReactor(state, store, reporter, blockApplier, fastSync)
+	return newReactor(state, store, reporter, blockApplier, fastSync, metrics)
 }
 
 // SetSwitch implements Reactor interface.
diff --git a/internal/blockchain/v2/reactor_test.go b/internal/blockchain/v2/reactor_test.go
index 4dd661fc5..c99153fa4 100644
--- a/internal/blockchain/v2/reactor_test.go
+++ b/internal/blockchain/v2/reactor_test.go
@@ -16,6 +16,7 @@ import (
 	abci "github.com/tendermint/tendermint/abci/types"
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/internal/blockchain/v2/internal/behavior"
+	cons "github.com/tendermint/tendermint/internal/consensus"
 	"github.com/tendermint/tendermint/internal/mempool/mock"
 	"github.com/tendermint/tendermint/internal/p2p"
 	"github.com/tendermint/tendermint/internal/p2p/conn"
@@ -175,7 +176,7 @@ func newTestReactor(t *testing.T, p testReactorParams) *BlockchainReactor {
 		require.NoError(t, err)
 	}
 
-	r := newReactor(state, store, reporter, appl, true)
+	r := newReactor(state, store, reporter, appl, true, cons.NopMetrics())
 	logger := log.TestingLogger()
 	r.SetLogger(logger.With("module", "blockchain"))
 
diff --git a/internal/consensus/metrics.go b/internal/consensus/metrics.go
index a4f56f631..5b4c47502 100644
--- a/internal/consensus/metrics.go
+++ b/internal/consensus/metrics.go
@@ -3,6 +3,7 @@ package consensus
 import (
 	"github.com/go-kit/kit/metrics"
 	"github.com/go-kit/kit/metrics/discard"
+	"github.com/tendermint/tendermint/types"
 
 	prometheus "github.com/go-kit/kit/metrics/prometheus"
 	stdprometheus "github.com/prometheus/client_golang/prometheus"
@@ -218,3 +219,11 @@ func NopMetrics() *Metrics {
 		BlockParts:      discard.NewCounter(),
 	}
 }
+
+// RecordConsMetrics uses for recording the block related metrics during fast-sync.
+func (m *Metrics) RecordConsMetrics(block *types.Block) {
+	m.NumTxs.Set(float64(len(block.Data.Txs)))
+	m.TotalTxs.Add(float64(len(block.Data.Txs)))
+	m.BlockSizeBytes.Observe(float64(block.Size()))
+	m.CommittedHeight.Set(float64(block.Height))
+}
diff --git a/internal/consensus/reactor.go b/internal/consensus/reactor.go
index 904ac44ea..0eabeef45 100644
--- a/internal/consensus/reactor.go
+++ b/internal/consensus/reactor.go
@@ -1403,3 +1403,7 @@ func (r *Reactor) peerStatsRoutine() {
 		}
 	}
 }
+
+func (r *Reactor) GetConsensusState() *State {
+	return r.state
+}
diff --git a/internal/consensus/state.go b/internal/consensus/state.go
index e31628b33..964ca6563 100644
--- a/internal/consensus/state.go
+++ b/internal/consensus/state.go
@@ -1671,7 +1671,7 @@ func (cs *State) finalizeCommit(height int64) {
 	fail.Fail() // XXX
 
 	// must be called before we update state
-	cs.recordMetrics(height, block)
+	cs.RecordMetrics(height, block)
 
 	// NewHeightStep!
 	cs.updateToState(stateCopy)
@@ -1693,7 +1693,7 @@ func (cs *State) finalizeCommit(height int64) {
 	// * cs.StartTime is set to when we will start round0.
 }
 
-func (cs *State) recordMetrics(height int64, block *types.Block) {
+func (cs *State) RecordMetrics(height int64, block *types.Block) {
 	cs.metrics.Validators.Set(float64(cs.Validators.Size()))
 	cs.metrics.ValidatorsPower.Set(float64(cs.Validators.TotalVotingPower()))
 
@@ -1713,8 +1713,9 @@ func (cs *State) recordMetrics(height int64, block *types.Block) {
 			address    types.Address
 		)
 		if commitSize != valSetLen {
-			panic(fmt.Sprintf("commit size (%d) doesn't match valset length (%d) at height %d\n\n%v\n\n%v",
+			cs.Logger.Error(fmt.Sprintf("commit size (%d) doesn't match valset length (%d) at height %d\n\n%v\n\n%v",
 				commitSize, valSetLen, block.Height, block.LastCommit.Signatures, cs.LastValidators.Validators))
+			return
 		}
 
 		if cs.privValidator != nil {
@@ -1752,9 +1753,10 @@ func (cs *State) recordMetrics(height int64, block *types.Block) {
 
 	// NOTE: byzantine validators power and count is only for consensus evidence i.e. duplicate vote
 	var (
-		byzantineValidatorsPower = int64(0)
-		byzantineValidatorsCount = int64(0)
+		byzantineValidatorsPower int64
+		byzantineValidatorsCount int64
 	)
+
 	for _, ev := range block.Evidence.Evidence {
 		if dve, ok := ev.(*types.DuplicateVoteEvidence); ok {
 			if _, val := cs.Validators.GetByAddress(dve.VoteA.ValidatorAddress); val != nil {
diff --git a/node/node.go b/node/node.go
index 9b9444a5e..058233de1 100644
--- a/node/node.go
+++ b/node/node.go
@@ -290,7 +290,7 @@ func makeNode(config *cfg.Config,
 	// doing a state sync first.
 	bcReactorShim, bcReactor, err := createBlockchainReactor(
 		logger, config, state, blockExec, blockStore, csReactor,
-		peerManager, router, fastSync && !stateSync,
+		peerManager, router, fastSync && !stateSync, csMetrics,
 	)
 	if err != nil {
 		return nil, fmt.Errorf("could not create blockchain reactor: %w", err)
diff --git a/node/setup.go b/node/setup.go
index dc12bf989..505ee476f 100644
--- a/node/setup.go
+++ b/node/setup.go
@@ -331,6 +331,7 @@ func createBlockchainReactor(
 	peerManager *p2p.PeerManager,
 	router *p2p.Router,
 	fastSync bool,
+	metrics *cs.Metrics,
 ) (*p2p.ReactorShim, service.Service, error) {
 
 	logger = logger.With("module", "blockchain")
@@ -355,6 +356,7 @@ func createBlockchainReactor(
 		reactor, err := bcv0.NewReactor(
 			logger, state.Copy(), blockExec, blockStore, csReactor,
 			channels[bcv0.BlockchainChannel], peerUpdates, fastSync,
+			metrics,
 		)
 		if err != nil {
 			return nil, nil, err
@@ -363,7 +365,7 @@ func createBlockchainReactor(
 		return reactorShim, reactor, nil
 
 	case cfg.BlockchainV2:
-		reactor := bcv2.NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync)
+		reactor := bcv2.NewBlockchainReactor(state.Copy(), blockExec, blockStore, fastSync, metrics)
 		reactor.SetLogger(logger)
 
 		return nil, reactor, nil