diff --git a/pyIUDX/rs/data.py b/pyIUDX/rs/data.py
new file mode 100644
index 0000000..c4fbce4
--- /dev/null
+++ b/pyIUDX/rs/data.py
@@ -0,0 +1,47 @@
+from multiprocessing import Pool, Manager
+from collections import MutableSequence
+from pyIUDX.rs import rs
+from pyIUDX.rs import Item 
+from pyIUDX.cat import cat
+from pyIUDX.auth import auth
+import numpy as np
+import datetime
+import requests
+import copy
+
+class Data:
+
+	def __init__(self, items, properties):
+		self.items = [] 
+		for i in items:
+			split = i.split("/") # domain / sha1 / resource-server / group / item name
+			group = split[3]
+			rs = "https://" + split[2] + "/resource-server/" + group + "/v1"
+			catalog = "https://catalogue.iudx.org.in/catalogue/v1";
+			Id = split[3:].join("/") 
+			self.items.append(Item(catalog,rs,Id))
+
+	def latest(self):
+		result = []
+		for i in self.items:	
+			result.append(i.latest())
+		return result 
+
+	def during(self, start, end):
+		result = []
+		for i in self.items:	
+			result.append(i.during(start,end))
+		return result 
+
+	def latestWith(self, attr, val):
+		result = []
+		for i in self.items:	
+			result.append(i.latestWith(attr,val))
+		return result 
+
+	def valueBetween(self, attrName, minval, maxVal):
+		result = []
+		for i in self.items:	
+			result.append(i.valueBetween(attrName,minval,maxVal))
+
+		return result