diff --git a/package.json b/package.json
index eb0bb08e..f347019c 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
   "scripts": {
     "lint": "prettier \"./**\" --write",
     "build": "hardhat export-abi && tsc --project lib.tsconfig.json",
+    "tsc": "tsc --project lib.tsconfig.json",
     "abi": "hardhat export-abi",
     "compile": "forge build",
     "test": "prettier --write $(git diff --name-only --diff-filter d | xargs) && forge test",
diff --git a/scripts/deploy/helpers/send-msg/allPathTest.ts b/scripts/deploy/helpers/send-msg/allPathTest.ts
index bd16f732..e5b4e4db 100644
--- a/scripts/deploy/helpers/send-msg/allPathTest.ts
+++ b/scripts/deploy/helpers/send-msg/allPathTest.ts
@@ -9,15 +9,16 @@ import {
   isTestnet,
   isMainnet,
   CORE_CONTRACTS,
+  DeploymentMode,
 } from "../../../../src";
 import { getAddresses, getRelayUrl, getRelayAPIKEY } from "../../utils";
 import { BigNumber, Contract, ethers } from "ethers";
 import Counter from "../../../../out/Counter.sol/Counter.json";
 import Socket from "../../../../out/Socket.sol/Socket.json";
 
-import { chains, mode, overrides } from "../../config";
 import { getProviderFromChainSlug } from "../../../constants/networks";
 import { formatEther } from "ethers/lib/utils";
+import { chains, mode, overrides } from "../../config/config";
 
 interface RequestObj {
   to: string;
@@ -28,6 +29,10 @@ interface RequestObj {
   gasLimit: string | number | undefined;
 }
 
+const API_BASE_URL =
+  mode == DeploymentMode.DEV
+    ? "https://raf5spoep4.execute-api.us-east-1.amazonaws.com/dev/v1"
+    : "https://prod.dlapi.socket.tech";
 const getSiblingSlugs = (chainSlug: ChainSlug): ChainSlug[] => {
   console.log(chainSlug, isMainnet(chainSlug));
   if (isTestnet(chainSlug))
@@ -208,7 +213,7 @@ export const sendMessagesToAllPaths = async (params: {
                   provider
                 );
                 console.log(
-                  `Track message here: https://prod.dlapi.socket.tech/messages-from-tx?srcChainSlug=${chainSlug}&srcTxHash=${response?.hash}`
+                  `Track message here: ${API_BASE_URL}/messages-from-tx?srcChainSlug=${chainSlug}&srcTxHash=${response?.hash}`
                 );
               })
             );
diff --git a/scripts/rpcConfig/constants/confirmations.ts b/scripts/rpcConfig/constants/confirmations.ts
deleted file mode 100644
index ebe625d6..00000000
--- a/scripts/rpcConfig/constants/confirmations.ts
+++ /dev/null
@@ -1,45 +0,0 @@
-import { ChainSlug } from "../../../src";
-
-export const confirmations = {
-  [ChainSlug.AEVO]: 2,
-  [ChainSlug.ARBITRUM]: 1,
-  [ChainSlug.LYRA]: 2,
-  [ChainSlug.OPTIMISM]: 15,
-  [ChainSlug.BSC]: 1,
-  [ChainSlug.POLYGON_MAINNET]: 256,
-  [ChainSlug.MAINNET]: 18,
-  [ChainSlug.BASE]: 1,
-  [ChainSlug.MODE]: 2,
-  [ChainSlug.ARBITRUM_GOERLI]: 1,
-  [ChainSlug.AEVO_TESTNET]: 1,
-  [ChainSlug.LYRA_TESTNET]: 1,
-  [ChainSlug.OPTIMISM_GOERLI]: 1,
-  [ChainSlug.GOERLI]: 1,
-  [ChainSlug.XAI_TESTNET]: 1,
-  [ChainSlug.SX_NETWORK_TESTNET]: 1,
-  [ChainSlug.SX_NETWORK]: 1,
-  [ChainSlug.MODE_TESTNET]: 1,
-  [ChainSlug.VICTION_TESTNET]: 1,
-  [ChainSlug.CDK_TESTNET]: 1,
-  [ChainSlug.ARBITRUM_SEPOLIA]: 1,
-  [ChainSlug.OPTIMISM_SEPOLIA]: 1,
-  [ChainSlug.SEPOLIA]: 1,
-  [ChainSlug.ANCIENT8_TESTNET]: 1,
-  [ChainSlug.ANCIENT8_TESTNET2]: 1,
-  [ChainSlug.HOOK_TESTNET]: 1,
-  [ChainSlug.HOOK]: 1,
-  [ChainSlug.PARALLEL]: 1,
-  [ChainSlug.MANTLE]: 1,
-  [ChainSlug.REYA_CRONOS]: 1,
-  [ChainSlug.REYA]: 0,
-  [ChainSlug.SYNDR_SEPOLIA_L3]: 1,
-  [ChainSlug.POLYNOMIAL_TESTNET]: 1,
-  [ChainSlug.BOB]: 0,
-  [ChainSlug.KINTO]: 0,
-  [ChainSlug.KINTO_DEVNET]: 0,
-  [ChainSlug.SIPHER_FUNKI_TESTNET]: 0,
-  [ChainSlug.WINR]: 0,
-  [ChainSlug.BLAST]: 0,
-  [ChainSlug.BSC_TESTNET]: 1,
-  [ChainSlug.POLYNOMIAL]: 1,
-};
diff --git a/scripts/rpcConfig/constants/defaultFinalityBucket.ts b/scripts/rpcConfig/constants/defaultFinalityBucket.ts
new file mode 100644
index 00000000..0e07a4e0
--- /dev/null
+++ b/scripts/rpcConfig/constants/defaultFinalityBucket.ts
@@ -0,0 +1,8 @@
+import { ChainSlug } from "../../../src/enums/chainSlug";
+
+import { FinalityBucket } from "../../../src/socket-types";
+
+export const defaultFinalityBucket = {
+  [ChainSlug.POLYGON_MAINNET]: FinalityBucket.medium,
+  [ChainSlug.MAINNET]: FinalityBucket.medium,
+};
diff --git a/scripts/rpcConfig/constants/finality.ts b/scripts/rpcConfig/constants/finality.ts
new file mode 100644
index 00000000..75a1a162
--- /dev/null
+++ b/scripts/rpcConfig/constants/finality.ts
@@ -0,0 +1,19 @@
+import { ChainSlug } from "../../../src/enums/chainSlug";
+
+import { ChainFinalityInfo, FinalityBucket } from "../../../src/socket-types";
+
+export const getFinality = (
+  chainSlug: ChainSlug
+): ChainFinalityInfo | undefined => {
+  return finalityOverrides[chainSlug];
+};
+
+export const finalityOverrides: {
+  [chainSlug in ChainSlug]?: ChainFinalityInfo;
+} = {
+  [ChainSlug.POLYGON_MAINNET]: {
+    [FinalityBucket.fast]: 64,
+    [FinalityBucket.medium]: 256,
+    [FinalityBucket.slow]: 1000,
+  },
+};
diff --git a/scripts/rpcConfig/constants/index.ts b/scripts/rpcConfig/constants/index.ts
index 21a613be..701451b6 100644
--- a/scripts/rpcConfig/constants/index.ts
+++ b/scripts/rpcConfig/constants/index.ts
@@ -1,6 +1,7 @@
 export * from "./batcherSupportedChainSlug";
-export * from "./confirmations";
+export * from "./reSyncInterval";
 export * from "./explorers";
 export * from "./icons";
 export * from "./rpc";
 export * from "./version";
+export * from "./finality";
diff --git a/scripts/rpcConfig/constants/reSyncInterval.ts b/scripts/rpcConfig/constants/reSyncInterval.ts
new file mode 100644
index 00000000..91ecbcd9
--- /dev/null
+++ b/scripts/rpcConfig/constants/reSyncInterval.ts
@@ -0,0 +1,6 @@
+import { ChainSlug } from "../../../src";
+
+export const reSyncInterval = {
+  [ChainSlug.POLYGON_MAINNET]: 256,
+  [ChainSlug.MAINNET]: 6,
+};
diff --git a/scripts/rpcConfig/constants/version.ts b/scripts/rpcConfig/constants/version.ts
index a4803bc7..bc2b55bb 100644
--- a/scripts/rpcConfig/constants/version.ts
+++ b/scripts/rpcConfig/constants/version.ts
@@ -1,6 +1,6 @@
 import { DeploymentMode } from "../../../src";
 
 export const version = {
-  [DeploymentMode.DEV]: "1.0.1",
+  [DeploymentMode.DEV]: "1.0.2",
   [DeploymentMode.PROD]: "1.0.20",
 };
diff --git a/scripts/rpcConfig/rpcConfig.ts b/scripts/rpcConfig/rpcConfig.ts
index 85e3b4c8..cdc8d210 100644
--- a/scripts/rpcConfig/rpcConfig.ts
+++ b/scripts/rpcConfig/rpcConfig.ts
@@ -17,16 +17,19 @@ import {
   arbL3Chains,
   polygonCDKChains,
   S3ChainConfig,
+  FinalityBucket,
 } from "../../src";
 import {
-  confirmations,
+  reSyncInterval,
   explorers,
   icons,
   batcherSupportedChainSlugs,
   prodFeesUpdaterSupportedChainSlugs,
   rpcs,
   version,
+  getFinality,
 } from "./constants";
+import { defaultFinalityBucket } from "./constants/defaultFinalityBucket";
 import { getChainTxData } from "./txdata-builder/generate-calldata";
 
 import dotenv from "dotenv";
@@ -91,7 +94,9 @@ const getChainData = async (
     chainTxData: await getChainTxData(chainSlug, txData),
     nativeToken: getCurrency(chainSlug),
     chainType: getChainType(chainSlug),
-    confirmations: confirmations[chainSlug],
+    reSyncInterval: getReSyncInterval(chainSlug),
+    finalityInfo: getFinality(chainSlug),
+    defaultFinalityBucket: getDefaultFinalityBucket(chainSlug),
     icon: icons[chainSlug],
   };
 };
@@ -158,3 +163,13 @@ export const generateProdConfig = async (txData: TxData): Promise<S3Config> => {
     chainSlugToId: ChainSlugToId,
   };
 };
+
+export const getDefaultFinalityBucket = (
+  chainSlug: ChainSlug
+): FinalityBucket => {
+  return defaultFinalityBucket[chainSlug] ?? FinalityBucket.fast;
+};
+
+export const getReSyncInterval = (chainSlug: ChainSlug) => {
+  return reSyncInterval[chainSlug] ?? 0;
+};
diff --git a/src/index.ts b/src/index.ts
index 3934760f..aa1241ef 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,9 +1,10 @@
 import { DeploymentMode } from "./socket-types";
-
+export { getFinality } from "../scripts/rpcConfig/constants/finality";
 export * from "./socket-types";
 export * from "./enums";
 export * from "./addresses";
 export * from "./currency-util";
+export * from "./transmission-utils";
 
 export const version = {
   [DeploymentMode.DEV]: "IMLI",
diff --git a/src/socket-types.ts b/src/socket-types.ts
index b8163433..afb2b056 100644
--- a/src/socket-types.ts
+++ b/src/socket-types.ts
@@ -206,6 +206,22 @@ export enum ChainType {
   default = "default",
 }
 
+export enum FinalityBucket {
+  fast = 1, // latest
+  medium = 2, // safe
+  slow = 3, // finalized
+}
+
+export enum TransmissionParamFinalityType {
+  bucket = 1,
+}
+
+export type ChainFinalityInfo = {
+  [FinalityBucket.fast]: number;
+  [FinalityBucket.medium]: number;
+  [FinalityBucket.slow]: number;
+};
+
 export type TxData = {
   [chainSlug in ChainSlug]?: ChainTxData;
 };
@@ -220,7 +236,7 @@ export interface ChainTxData {
 export interface S3ChainConfig {
   rpc: string;
   blockNumber: number;
-  confirmations: number;
+  reSyncInterval: number;
   siblings: ChainSlug[];
   chainName: string;
   eventBlockRange?: number;
@@ -229,6 +245,8 @@ export interface S3ChainConfig {
   chainTxData?: ChainTxData;
   explorer?: string;
   icon?: string;
+  finalityInfo?: ChainFinalityInfo;
+  defaultFinalityBucket?: FinalityBucket;
 }
 
 export type S3Config = {
diff --git a/src/transmission-utils.ts b/src/transmission-utils.ts
new file mode 100644
index 00000000..7467d96d
--- /dev/null
+++ b/src/transmission-utils.ts
@@ -0,0 +1,57 @@
+/*
+Transmission param format:
+- first byte - version - current version is 1
+- 2nd  byte - finalityType (1: bucket)
+- next 4 bytes - value - bucket (1:fast, 2:medium, 3:slow)
+
+eg : want to transmit message with slow speed - 
+transmissionParam = 0x0101000000030000000000000000000000000000000000000000000000000000
+
+eg : want to transmit message with fast speed -
+transmissionParam = 0x0101000000010000000000000000000000000000000000000000000000000000
+
+if version is 0, or invalid finality type, or invalid value is mentioned, it will use the default Bucket for that chain
+*/
+
+export const decodeTransmissionParams = (transmissionParam: string) => {
+  if (transmissionParam.length !== 64 && transmissionParam.length !== 66) {
+    throw new Error("Invalid transmission param length");
+  }
+  transmissionParam = transmissionParam.replace("0x", "");
+  const version = parseInt("0x" + transmissionParam.slice(0, 2));
+  const finalityType = parseInt("0x" + transmissionParam.slice(2, 4));
+  const value = parseInt("0x" + transmissionParam.slice(4, 12));
+
+  return { version, finalityType, value };
+};
+
+export const encodeTransmissionParams = (
+  version: number,
+  finalityType: number,
+  value: number
+) => {
+  let transmissionParam = "0x";
+  transmissionParam += version.toString(16).padStart(2, "0");
+  transmissionParam += finalityType.toString(16).padStart(2, "0");
+  transmissionParam += value.toString(16).padStart(8, "0");
+  transmissionParam = transmissionParam.padEnd(66, "0");
+  return transmissionParam;
+};
+
+export const isTxFinalized = (
+  currentBlock: number,
+  eventBlock: number,
+  finalityBlockDiff: number
+) => {
+  if (
+    currentBlock == null ||
+    currentBlock == undefined ||
+    eventBlock == null ||
+    eventBlock == undefined ||
+    finalityBlockDiff == null ||
+    finalityBlockDiff == undefined
+  ) {
+    throw new Error("Invalid data for block finality check");
+  }
+  return currentBlock - eventBlock >= finalityBlockDiff;
+};
diff --git a/yarn.lock b/yarn.lock
index e24b4dbd..c4e1fc17 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11343,6 +11343,11 @@ semver@^7.3.8:
   dependencies:
     lru-cache "^6.0.0"
 
+semver@^7.5.4:
+  version "7.6.2"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.6.2.tgz#1e3b34759f896e8f14d6134732ce798aeb0c6e13"
+  integrity sha512-FNAIBWCx9qcRhoHcgcJ0gvU7SN1lYU2ZXuSfl04bSC5OpvDHFyJCjdNHomPXxjQlCBU67YW64PzY7/VIEH7F2w==
+
 semver@^7.6.0:
   version "7.6.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.6.0.tgz#1a46a4db4bffcccd97b743b5005c8325f23d4e2d"