diff --git a/components/collections/creation/UploadDetails.tsx b/components/collections/creation/UploadDetails.tsx
index 8d78746..694ee47 100644
--- a/components/collections/creation/UploadDetails.tsx
+++ b/components/collections/creation/UploadDetails.tsx
@@ -119,7 +119,7 @@ export const UploadDetails = ({
     if (event.target.files === null) return
     const thumbnailCompatibleAssetTypes: AssetType[] = ['video', 'audio', 'html']
     const thumbnailCompatibleFileNamesList: string[] = []
-    if (minterType === 'vending' || (minterType === 'base' && event.target.files.length > 1)) {
+    if (minterType === 'vending') {
       //sort the files
       const sortedFiles = Array.from(event.target.files).sort((a, b) => naturalCompare(a.name, b.name))
       //check if the sorted file names are in numerical order
@@ -146,6 +146,38 @@ export const UploadDetails = ({
           return
         }
       }
+    } else if (minterType === 'base' && event.target.files.length > 1) {
+      //sort the files
+      const sortedFiles = Array.from(event.target.files).sort((a, b) => naturalCompare(a.name, b.name))
+      //check if the sorted file names are in numerical order
+      const sortedFileNames = sortedFiles.map((file) => file.name.split('.')[0])
+      sortedFiles.map((file) => {
+        if (thumbnailCompatibleAssetTypes.includes(getAssetType(file.name))) {
+          thumbnailCompatibleFileNamesList.push(file.name.split('.')[0])
+        }
+      })
+      setThumbnailCompatibleAssetFileNames(thumbnailCompatibleFileNamesList)
+      console.log('Thumbnail Compatible Files: ', thumbnailCompatibleFileNamesList)
+
+      for (let i = 0; i < sortedFileNames.length - 1; i++) {
+        if (
+          isNaN(Number(sortedFileNames[i])) ||
+          isNaN(Number(sortedFileNames[i + 1])) ||
+          parseInt(sortedFileNames[i]) !== parseInt(sortedFileNames[i + 1]) - 1
+        ) {
+          toast.error('The file names should be in numerical order.')
+          setThumbnailCompatibleAssetFileNames([])
+          addLogItem({
+            id: uid(),
+            message: 'The file names should be in numerical order.',
+            type: 'Error',
+            timestamp: new Date(),
+          })
+          //clear the input
+          event.target.value = ''
+          return
+        }
+      }
     } else if (minterType === 'base' && event.target.files.length === 1) {
       if (thumbnailCompatibleAssetTypes.includes(getAssetType(event.target.files[0].name))) {
         thumbnailCompatibleFileNamesList.push(event.target.files[0].name.split('.')[0])
@@ -186,7 +218,23 @@ export const UploadDetails = ({
       event.target.value = ''
       return toast.error('The number of metadata files should be equal to the number of asset files.')
     }
-    if (minterType === 'vending' || (minterType === 'base' && assetFilesArray.length > 1)) {
+    // compare the first file name for asset and metadata files
+    if (
+      minterType === 'base' &&
+      assetFilesArray.length > 1 &&
+      event.target.files[0].name.split('.')[0] !== assetFilesArray[0].name.split('.')[0]
+    ) {
+      event.target.value = ''
+      toast.error('The metadata file names should match the asset file names.')
+      addLogItem({
+        id: uid(),
+        message: 'The metadata file names should match the asset file names.',
+        type: 'Error',
+        timestamp: new Date(),
+      })
+      return
+    }
+    if (minterType === 'vending') {
       //sort the files
       const sortedFiles = Array.from(event.target.files).sort((a, b) => naturalCompare(a.name, b.name))
       //check if the sorted file names are in numerical order
@@ -204,6 +252,28 @@ export const UploadDetails = ({
           return
         }
       }
+    } else if (minterType === 'base' && assetFilesArray.length > 1) {
+      //sort the files
+      const sortedFiles = Array.from(event.target.files).sort((a, b) => naturalCompare(a.name, b.name))
+      //check if the sorted file names are in numerical order
+      const sortedFileNames = sortedFiles.map((file) => file.name.split('.')[0])
+      for (let i = 0; i < sortedFileNames.length - 1; i++) {
+        if (
+          isNaN(Number(sortedFileNames[i])) ||
+          isNaN(Number(sortedFileNames[i + 1])) ||
+          parseInt(sortedFileNames[i]) !== parseInt(sortedFileNames[i + 1]) - 1
+        ) {
+          toast.error('The file names should be in numerical order.')
+          addLogItem({
+            id: uid(),
+            message: 'The file names should be in numerical order.',
+            type: 'Error',
+            timestamp: new Date(),
+          })
+          event.target.value = ''
+          return
+        }
+      }
     }
     let loadedFileCount = 0
     const files: File[] = []
diff --git a/contracts/baseMinter/contract.ts b/contracts/baseMinter/contract.ts
index 1945412..d02275a 100644
--- a/contracts/baseMinter/contract.ts
+++ b/contracts/baseMinter/contract.ts
@@ -33,13 +33,13 @@ export interface BaseMinterInstance {
   //Execute
   mint: (senderAddress: string, tokenUri: string) => Promise<string>
   updateStartTradingTime: (senderAddress: string, time?: Timestamp) => Promise<string>
-  batchMint: (senderAddress: string, recipient: string, batchCount: number) => Promise<string>
+  batchMint: (senderAddress: string, recipient: string, batchCount: number, startFrom: number) => Promise<string>
 }
 
 export interface BaseMinterMessages {
   mint: (tokenUri: string) => MintMessage
   updateStartTradingTime: (time: Timestamp) => UpdateStartTradingTimeMessage
-  batchMint: (recipient: string, batchNumber: number) => CustomMessage
+  batchMint: (recipient: string, batchNumber: number, startFrom: number) => CustomMessage
 }
 
 export interface MintMessage {
@@ -178,7 +178,12 @@ export const baseMinter = (client: SigningCosmWasmClient, txSigner: string): Bas
       return res.transactionHash
     }
 
-    const batchMint = async (senderAddress: string, baseUri: string, batchCount: number): Promise<string> => {
+    const batchMint = async (
+      senderAddress: string,
+      baseUri: string,
+      batchCount: number,
+      startFrom: number,
+    ): Promise<string> => {
       const txHash = await getConfig().then(async (response) => {
         const factoryParameters = await toast.promise(getFactoryParameters(response?.config?.factory), {
           loading: 'Querying Factory Parameters...',
@@ -198,7 +203,7 @@ export const baseMinter = (client: SigningCosmWasmClient, txSigner: string): Bas
         const executeContractMsgs: MsgExecuteContractEncodeObject[] = []
         for (let i = 0; i < batchCount; i++) {
           const msg = {
-            mint: { token_uri: `${baseUri}/${i + 1}` },
+            mint: { token_uri: `${baseUri}/${i + startFrom}` },
           }
           const executeContractMsg: MsgExecuteContractEncodeObject = {
             typeUrl: '/cosmwasm.wasm.v1.MsgExecuteContract',
@@ -282,10 +287,10 @@ export const baseMinter = (client: SigningCosmWasmClient, txSigner: string): Bas
       }
     }
 
-    const batchMint = (baseUri: string, batchCount: number): CustomMessage => {
+    const batchMint = (baseUri: string, batchCount: number, startFrom: number): CustomMessage => {
       const msg: Record<string, unknown>[] = []
       for (let i = 0; i < batchCount; i++) {
-        msg.push({ mint: { token_uri: `${baseUri}/${i + 1}` } })
+        msg.push({ mint: { token_uri: `${baseUri}/${i + startFrom}` } })
       }
       return {
         sender: txSigner,
diff --git a/pages/collections/create.tsx b/pages/collections/create.tsx
index e25ac80..c8efbc3 100644
--- a/pages/collections/create.tsx
+++ b/pages/collections/create.tsx
@@ -449,7 +449,12 @@ const CollectionCreationPage: NextPage = () => {
             setBaseTokenUri(baseUri)
             const result = await baseMinterContract
               .use(baseMinterDetails?.existingBaseMinter as string)
-              ?.batchMint(wallet.address, `ipfs://${baseUri}`, uploadDetails.assetFiles.length)
+              ?.batchMint(
+                wallet.address,
+                `ipfs://${baseUri}`,
+                uploadDetails.assetFiles.length,
+                parseInt(uploadDetails.assetFiles[0].name.split('.')[0]),
+              )
             console.log(result)
             return result
           })
@@ -698,7 +703,12 @@ const CollectionCreationPage: NextPage = () => {
             .promise(
               baseMinterContract
                 .use(data.baseMinterAddress)
-                ?.batchMint(wallet.address, baseUri, uploadDetails?.assetFiles.length as number) as Promise<string>,
+                ?.batchMint(
+                  wallet.address,
+                  baseUri,
+                  uploadDetails?.assetFiles.length as number,
+                  parseInt(uploadDetails?.assetFiles[0].name.split('.')[0] as string),
+                ) as Promise<string>,
               {
                 loading: 'Minting tokens...',
                 success: (result) => {