diff --git a/nlsr_dm.cpp b/nlsr_dm.cpp
new file mode 100644
index 0000000..70089dc
--- /dev/null
+++ b/nlsr_dm.cpp
@@ -0,0 +1,23 @@
+#include<iostream>
+#include<cstdlib>
+
+
+
+#include "nlsr.hpp"
+#include "nlsr_dm.hpp"
+#include "nlsr_tokenizer.hpp"
+
+using namespace std;
+using namespace ndn;
+
+void
+DataManager::processContent(const nlsr& pnlsr, 
+                  const ndn::ptr_lib::shared_ptr<const ndn::Interest> &interest,
+								               const ndn::ptr_lib::shared_ptr<ndn::Data> &data)
+{
+
+	cout << "I: " << interest->toUri() << endl;
+  	cout << "D: " << data->getName().toUri() << endl;
+	cout << "Data Content: " << data->getContent() << endl;
+
+}
diff --git a/nlsr_dm.hpp b/nlsr_dm.hpp
new file mode 100644
index 0000000..da513ed
--- /dev/null
+++ b/nlsr_dm.hpp
@@ -0,0 +1,25 @@
+#ifndef NLSR_DM_HPP
+#define NLSR_DM_HPP
+
+#include <ndn-cpp-dev/face.hpp>
+#include <ndn-cpp-dev/security/key-chain.hpp>
+#include <ndn-cpp-dev/util/scheduler.hpp>
+
+
+using namespace ndn;
+using namespace std;
+
+class nlsr;
+
+class DataManager
+{
+public:
+  void processContent(const nlsr& pnlsr, 
+                  const ndn::ptr_lib::shared_ptr<const ndn::Interest> &interest,
+								               const ndn::ptr_lib::shared_ptr<ndn::Data> &data);
+private:
+  
+};
+
+
+#endif
diff --git a/nlsr_im.cpp b/nlsr_im.cpp
new file mode 100644
index 0000000..6a432a5
--- /dev/null
+++ b/nlsr_im.cpp
@@ -0,0 +1,84 @@
+#include<iostream>
+#include<cstdlib>
+
+
+
+#include "nlsr.hpp"
+#include "nlsr_im.hpp"
+#include "nlsr_dm.hpp"
+#include "nlsr_tokenizer.hpp"
+
+using namespace std;
+using namespace ndn;
+
+void 
+interestManager::processInterest( nlsr& pnlsr,
+                                  const ptr_lib::shared_ptr<const Name> &name, 
+                            const ptr_lib::shared_ptr<const Interest> &interest)
+{
+
+	cout << "<< I: " << *interest << endl;
+  Data data(ndn::Name(interest->getName()).append("testApp").appendVersion());
+  data.setFreshnessPeriod(1000); // 10 sec
+  data.setContent((const uint8_t*)"HELLO KITTY", sizeof("HELLO KITTY"));
+  pnlsr.kChain.sign(data);
+  cout << ">> D: " << data << endl;
+  pnlsr.nlsrFace.put(data);
+}
+
+void 
+interestManager::processInterestTimedOut(nlsr& pnlsr,
+                 const ndn::ptr_lib::shared_ptr<const ndn::Interest> &interest)
+{
+  	cout << "Timed out interest : " << interest->getName().toUri() << endl;
+	string intName=	interest->getName().toUri();
+	cout << intName <<endl;
+	nlsrTokenizer nt(intName,"/");
+	string chkString("info");
+	if( nt.doesTokenExist(chkString) ){
+		string nbr=nt.getTokenString(0,nt.getTokenPosition(chkString)-1);
+		cout<<"Neighbor :"<<nbr<<endl;
+	}
+
+}
+
+void 
+interestManager::expressInterest(nlsr& pnlsr,const string& interestNamePrefix, 
+                                  											int scope, int seconds)
+{
+	Interest i((ndn::Name(interestNamePrefix)));
+  //i.setScope(scope);
+  i.setInterestLifetime(seconds*1000);
+	i.setMustBeFresh(true);
+
+	pnlsr.nlsrFace.expressInterest(i,
+                  ndn::func_lib::bind(&DataManager::processContent, 
+                  &pnlsr.dm, boost::ref(pnlsr),_1, _2),
+                  ndn::func_lib::bind(&interestManager::processInterestTimedOut,
+                                                    this,boost::ref(pnlsr),_1));
+}
+
+
+void 
+interestManager::sendScheduledInfoInterest(nlsr& pnlsr, int seconds)
+{
+	std::list<Adjacent> adjList=pnlsr.adl.getAdjList();
+	for(std::list<Adjacent>::iterator it=adjList.begin(); it!=adjList.end();++it)
+  {
+		string adjName=(*it).getAdjacentName()+"/"+"info"+
+                                              pnlsr.confParam.getRouterPrefix();
+		expressInterest(	pnlsr,adjName,2,pnlsr.confParam.getInterestResendTime());
+	}
+
+	scheduleInfoInterest(pnlsr, pnlsr.confParam.getInfoInterestInterval());
+
+}
+
+void 
+interestManager::scheduleInfoInterest(nlsr& pnlsr, int seconds)
+{
+	pnlsr.scheduler.scheduleEvent(ndn::time::seconds(seconds),
+							ndn::bind(&interestManager::sendScheduledInfoInterest, this, 
+																									boost::ref(pnlsr),seconds));
+}
+
diff --git a/nlsr_im.hpp b/nlsr_im.hpp
new file mode 100644
index 0000000..7e3eb9c
--- /dev/null
+++ b/nlsr_im.hpp
@@ -0,0 +1,34 @@
+#ifndef NLSR_IM_HPP
+#define NLSR_IM_HPP
+
+#include <ndn-cpp-dev/face.hpp>
+#include <ndn-cpp-dev/security/key-chain.hpp>
+#include <ndn-cpp-dev/util/scheduler.hpp>
+
+
+using namespace ndn;
+using namespace std;
+
+class nlsr;
+
+class interestManager{
+public:	
+	interestManager()
+	{
+	}
+  void processInterest(nlsr& pnlsr, const ptr_lib::shared_ptr<const Name> &name, 
+							            const ptr_lib::shared_ptr<const Interest> &interest);
+  void processInterestTimedOut(nlsr& pnlsr,
+                 const ndn::ptr_lib::shared_ptr<const ndn::Interest> &interest);
+  void expressInterest(nlsr& pnlsr,const string& interestNamePrefix, int scope, 
+                                                                   int seconds);
+  void sendScheduledInfoInterest(nlsr& pnlsr, int seconds);
+	void scheduleInfoInterest(nlsr& pnlsr, int seconds);
+
+private:	
+
+
+};
+
+
+#endif