diff --git a/src/nlsr_im.cpp b/src/nlsr_im.cpp
new file mode 100644
index 0000000..6ae0131
--- /dev/null
+++ b/src/nlsr_im.cpp
@@ -0,0 +1,154 @@
+#include<iostream>
+#include<cstdlib>
+
+
+
+#include "nlsr.hpp"
+#include "nlsr_im.hpp"
+#include "nlsr_dm.hpp"
+#include "nlsr_tokenizer.hpp"
+#include "nlsr_lsdb.hpp"
+
+using namespace std;
+using namespace ndn;
+
+void 
+interestManager::processInterest( nlsr& pnlsr,
+                                  const ndn::Name &name, 
+                                  const ndn::Interest &interest)
+{
+
+	cout << "<< I: " << interest << endl;
+	string intName=interest.getName().toUri();
+	cout << "Interest Received for Name: "<< intName <<endl;
+	nlsrTokenizer nt(intName,"/");
+	string chkString("info");
+	if( nt.doesTokenExist(chkString) ){
+		string nbr=nt.getTokenString(nt.getTokenPosition(chkString)+1);
+		cout <<"Neighbor: " << nbr <<endl;
+		processInterestInfo(pnlsr,nbr,interest);
+	}
+	
+  //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.getKeyChain().sign(data);
+  //cout << ">> D: " << data << endl;
+  //pnlsr.getNlsrFace().put(data);
+}
+
+void 
+interestManager::processInterestInfo(nlsr& pnlsr, string& neighbor,
+							                                    const ndn::Interest &interest)
+{
+	if ( pnlsr.getAdl().isNeighbor(neighbor) )
+	{
+		Data data(ndn::Name(interest.getName()).appendVersion());
+  		data.setFreshnessPeriod(1000); // 10 sec
+  		data.setContent((const uint8_t*)"info", sizeof("info"));
+  		pnlsr.getKeyChain().sign(data);
+  		cout << ">> D: " << data << endl;
+  		pnlsr.getNlsrFace().put(data);
+
+  		int status=pnlsr.getAdl().getStatusOfNeighbor(neighbor);
+  		if ( status == 0 )
+  		{
+			string intName=neighbor +"/"+"info"+
+                                     pnlsr.getConfParameter().getRouterPrefix();
+    		expressInterest(	pnlsr,intName,2,
+                              pnlsr.getConfParameter().getInterestResendTime());
+  		}
+	}
+}
+
+void 
+interestManager::processInterestTimedOut(nlsr& pnlsr,
+                                                  const ndn::Interest &interest)
+{
+  	cout << "Timed out interest : " << interest.getName().toUri() << endl;
+	string intName=	interest.getName().toUri();
+	nlsrTokenizer nt(intName,"/");
+	string chkString("info");
+	if( nt.doesTokenExist(chkString) ){
+		string nbr="/" + nt.getFirstToken()
+							+nt.getTokenString(0,nt.getTokenPosition(chkString)-1);
+		processInterestTimedOutInfo( pnlsr , nbr , interest);
+	}
+
+}
+
+void 
+interestManager::processInterestTimedOutInfo(nlsr& pnlsr, string& neighbor,
+                                                  const ndn::Interest &interest)
+{
+	pnlsr.getAdl().incrementTimedOutInterestCount(neighbor);
+	int status=pnlsr.getAdl().getStatusOfNeighbor(neighbor);
+	int infoIntTimedOutCount=pnlsr.getAdl().getTimedOutInterestCount(neighbor);
+	cout<<"Neighbor: "<< neighbor << endl;
+	cout<<"Status: "<< status << endl;
+	cout<<"Info Interest Timed out: "<< infoIntTimedOutCount <<endl;
+
+	if((infoIntTimedOutCount < pnlsr.getConfParameter().getInterestRetryNumber()))
+	{
+		string intName=neighbor +"/"+"info"+
+                                     pnlsr.getConfParameter().getRouterPrefix();
+    expressInterest(	pnlsr,intName,2,
+                              pnlsr.getConfParameter().getInterestResendTime());
+	}
+	else if ( (status == 1) && 
+	  (infoIntTimedOutCount == pnlsr.getConfParameter().getInterestRetryNumber()))
+	{
+		pnlsr.getAdl().setStatusOfNeighbor(neighbor,0);
+		pnlsr.incrementAdjBuildCount();
+		if ( pnlsr.getIsBuildAdjLsaSheduled() == 0 )
+		{
+			pnlsr.setIsBuildAdjLsaSheduled(1);
+			// event here
+			pnlsr.getScheduler().scheduleEvent(ndn::time::seconds(5),
+							ndn::bind(&Lsdb::scheduledAdjLsaBuild,pnlsr.getLsdb(), 
+																									boost::ref(pnlsr)));
+		}
+	}
+	
+}
+
+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.getNlsrFace().expressInterest(i,
+                  ndn::func_lib::bind(&DataManager::processContent, 
+                  &pnlsr.getDm(), 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.getAdl().getAdjList();
+	for(std::list<Adjacent>::iterator it=adjList.begin(); it!=adjList.end();++it)
+  {
+		string adjName=(*it).getAdjacentName()+"/"+"info"+
+                                              pnlsr.getConfParameter().getRouterPrefix();
+		expressInterest(	pnlsr,adjName,2,pnlsr.getConfParameter().getInterestResendTime());
+	}
+
+	scheduleInfoInterest(pnlsr, pnlsr.getConfParameter().getInfoInterestInterval());
+
+}
+
+void 
+interestManager::scheduleInfoInterest(nlsr& pnlsr, int seconds)
+{
+	pnlsr.getScheduler().scheduleEvent(ndn::time::seconds(seconds),
+							ndn::bind(&interestManager::sendScheduledInfoInterest, this, 
+																									boost::ref(pnlsr),seconds));
+}
+