diff --git a/cosmos/cosmos_chain.go b/cosmos/cosmos_chain.go
index c2a8d0a..4e0b619 100644
--- a/cosmos/cosmos_chain.go
+++ b/cosmos/cosmos_chain.go
@@ -391,13 +391,13 @@ func (c *CosmosChain) ParamChangeProposal(ctx context.Context, keyName string, p
 }
 
 // SubmitFraudProposal submit a fraud proposal.
-func (c *CosmosChain) SubmitFraudProposal(ctx context.Context, keyName, rollappChainID, height, proposerAddr, clientId, title, descrition, deposit string) error {
-	_, err := c.getFullNode().SubmitFraudProposal(ctx, keyName, rollappChainID, height, proposerAddr, clientId, title, descrition, deposit)
+func (c *CosmosChain) SubmitFraudProposal(ctx context.Context, keyName, rollappChainID, height, proposerAddr, clientId, title, descrition, deposit string) (tx TxProposal, _ error) {
+	txHash, err := c.getFullNode().SubmitFraudProposal(ctx, keyName, rollappChainID, height, proposerAddr, clientId, title, descrition, deposit)
 	if err != nil {
-		return fmt.Errorf("failed to submit fraud proposal: %w", err)
+		return tx, fmt.Errorf("failed to submit fraud proposal: %w", err)
 	}
 
-	return nil
+	return c.txProposal(txHash)
 }
 
 // QueryParam returns the param state of a given key.
diff --git a/cosmos/hub/dym_hub/dym_hub.go b/cosmos/hub/dym_hub/dym_hub.go
index da2478f..e077ebb 100644
--- a/cosmos/hub/dym_hub/dym_hub.go
+++ b/cosmos/hub/dym_hub/dym_hub.go
@@ -421,7 +421,7 @@ func (c *DymHub) QueryRollappState(ctx context.Context,
 
 	var command []string
 	command = append(command, "rollapp", "state", rollappName)
-	
+
 	if onlyFinalized {
 		command = append(command, "--finalized")
 	}
@@ -444,7 +444,7 @@ func (c *DymHub) QueryLatestStateIndex(ctx context.Context,
 ) (*dymension.QueryGetLatestStateIndexResponse, error) {
 	var command []string
 	command = append(command, "rollapp", "latest-state-index", rollappName)
-	
+
 	if onlyFinalized {
 		command = append(command, "--finalized")
 	}
@@ -550,3 +550,28 @@ func (c *DymHub) WaitUntilRollappHeightIsFinalized(ctx context.Context, rollappC
 		}
 	}
 }
+
+func (c *DymHub) AssertFinalization(ctx context.Context, rollappName string, minIndex, timeoutSecs uint64) (bool, error) {
+
+	startTime := time.Now()
+	timeout := time.Duration(timeoutSecs) * time.Second
+
+	for {
+		select {
+		case <-time.After(timeout):
+			return false, fmt.Errorf("timeout reached without rollap state finalization index reach: %d", minIndex)
+		default:
+			latestFinalizedIndex, err := c.FinalizedRollappStateIndex(ctx, rollappName)
+			if err != nil {
+				if time.Since(startTime) < timeout {
+					time.Sleep(2 * time.Second) // 2sec interval
+					continue
+				}
+			}
+
+			if latestFinalizedIndex >= minIndex {
+				return true, nil
+			}
+		}
+	}
+}