diff --git a/builder/files/genesis-testnet-v4.json b/builder/files/genesis-testnet-v4.json
index c97d1878b0..39b9fe5eff 100644
--- a/builder/files/genesis-testnet-v4.json
+++ b/builder/files/genesis-testnet-v4.json
@@ -15,18 +15,18 @@
     "londonBlock": 22640000,
     "bor": {
       "jaipurBlock": 22770000,
-      "delhiBlock":  29392500,
+      "delhiBlock":  29392128,
       "period": {
         "0": 2,
         "25275000": 5
       },
       "producerDelay": {
         "0": 6,
-        "29392500": 4
+        "29392128": 4
       },
       "sprint": {
         "0": 64,
-        "29392500": 16
+        "29392128": 16
       },
       "backupMultiplier": {
         "0": 2,
diff --git a/internal/cli/server/chains/mumbai.go b/internal/cli/server/chains/mumbai.go
index bcbf899da4..16f74e597d 100644
--- a/internal/cli/server/chains/mumbai.go
+++ b/internal/cli/server/chains/mumbai.go
@@ -30,18 +30,18 @@ var mumbaiTestnet = &Chain{
 			LondonBlock:         big.NewInt(22640000),
 			Bor: &params.BorConfig{
 				JaipurBlock: big.NewInt(22770000),
-				DelhiBlock:  big.NewInt(29392500),
+				DelhiBlock:  big.NewInt(29392128),
 				Period: map[string]uint64{
 					"0":        2,
 					"25275000": 5,
 				},
 				ProducerDelay: map[string]uint64{
 					"0":        6,
-					"29392500": 4,
+					"29392128": 4,
 				},
 				Sprint: map[string]uint64{
 					"0":        64,
-					"29392500": 16,
+					"29392128": 16,
 				},
 				BackupMultiplier: map[string]uint64{
 					"0":        2,
diff --git a/internal/cli/server/chains/test_files/chain_legacy_test.json b/internal/cli/server/chains/test_files/chain_legacy_test.json
index 70f972eea4..fdbe2f2165 100644
--- a/internal/cli/server/chains/test_files/chain_legacy_test.json
+++ b/internal/cli/server/chains/test_files/chain_legacy_test.json
@@ -20,11 +20,11 @@
       },
       "producerDelay": {
         "0": 6,
-        "29392500": 4
+        "29392128": 4
       },
       "sprint": {
         "0": 64,
-        "29392500": 16
+        "29392128": 16
       },
       "backupMultiplier": {
         "0": 2
@@ -44,7 +44,7 @@
         "22640000": "0x70bcA57F4579f58670aB2d18Ef16e02C17553C38"
       },
       "jaipurBlock": 22770000,
-      "delhiBlock": 29392500
+      "delhiBlock": 29392128
     }
   },
   "nonce": "0x0",
diff --git a/internal/cli/server/chains/test_files/chain_test.json b/internal/cli/server/chains/test_files/chain_test.json
index b8771505fa..60cef797cd 100644
--- a/internal/cli/server/chains/test_files/chain_test.json
+++ b/internal/cli/server/chains/test_files/chain_test.json
@@ -22,11 +22,11 @@
           },
           "producerDelay":{
             "0": 6,
-            "29392500": 4
+            "29392128": 4
           },
           "sprint":{
             "0": 64,
-            "29392500": 16
+            "29392128": 16
           },
           "backupMultiplier":{
             "0":2
@@ -46,7 +46,7 @@
             "22640000":"0x70bcA57F4579f58670aB2d18Ef16e02C17553C38"
           },
           "jaipurBlock":22770000,
-          "delhiBlock": 29392500
+          "delhiBlock": 29392128
         }
       },
       "nonce":"0x0",
diff --git a/params/config.go b/params/config.go
index c65ff24f30..4653f9f0db 100644
--- a/params/config.go
+++ b/params/config.go
@@ -350,18 +350,18 @@ var (
 		LondonBlock:         big.NewInt(22640000),
 		Bor: &BorConfig{
 			JaipurBlock: big.NewInt(22770000),
-			DelhiBlock:  big.NewInt(29392500),
+			DelhiBlock:  big.NewInt(29392128),
 			Period: map[string]uint64{
 				"0":        2,
 				"25275000": 5,
 			},
 			ProducerDelay: map[string]uint64{
 				"0":        6,
-				"29392500": 4,
+				"29392128": 4,
 			},
 			Sprint: map[string]uint64{
 				"0":        64,
-				"29392500": 16,
+				"29392128": 16,
 			},
 			BackupMultiplier: map[string]uint64{
 				"0":        2,