diff --git a/modules/workflows/ModalityGrouping.py b/modules/workflows/ModalityGrouping.py
new file mode 100644
index 0000000..0aa6015
--- /dev/null
+++ b/modules/workflows/ModalityGrouping.py
@@ -0,0 +1,28 @@
+import os, glob
+import sys
+import logging
+import pydicom as pyd
+import shutil
+
+def modality_split(cold_extraction_path, modality_split_path):
+    # iterating through all the files in cold extraction
+    for root, files in os.walk(cold_extraction_path):
+        for file in files:
+            if file.endswith('.dcm'):
+                dcm_filename = root+'/'+file
+                dcm_path = '/'.join(dcm_filename.split('/')[5:])
+                dcm_only_folder = '/'.join(dcm_path.split('/')[:-1])
+                dcm_file = pyd.dcmread(dcm_filename)
+                dcm_modality = dcm_file.Modality
+
+                print (dcm_modality, dcm_only_folder)
+                isExist = os.path.exists(modality_split_path+str(dcm_modality)+'/'+str(dcm_only_folder))
+                if not isExist:
+                    os.makedirs(modality_split_path+str(dcm_modality)+'/'+str(dcm_only_folder))
+                    shutil.copy2(src=cold_extraction_path+str(dcm_path), dst=modality_split_path+str(dcm_modality)+'/'+str(dcm_only_folder)+'/'+str(dcm_path.split('/')[-1]))
+
+if __name__ == "__main__":
+    cold_extraction_path = sys.argv[1]
+    modality_split_path = sys.argv[2]
+    print ('Starting Modality Grouping')
+    modality_split(cold_extraction_path, modality_split_path)