@kimot that part i missed. thanks for pointing that out. I will give this option also a try. its just that the other sensors that are in the other rooms are already set in place and I do not want to pluck them out and recode them. So pulling the values from the GW would have been an advantage. But anyways, if that is the way to go, then Ill probably do that.
Thanks everyone for your inputs

As an update.
Finally after wrapping my head around the topic and knowing that you cant just send a value from one node in a VAR1 and expect it to just retain that value and get it in another node, i used the node - node communication and it worked!!!.

so my send sketch is

send(pcMsg.setDestination(1).setSensor(101).set(temperature,1));

and receive sketch is

void loop() 
{
   request(0, V_VAR1);
 }

void receive(const MyMessage &message) {

 if (message.type==V_VAR1) {
   if (message.sensor==101) {

   
    // Write some debug info
    Serial.print("Incoming change for sensor:");
    Serial.print(message.sensor);
    Serial.print("\n");
    Serial.print(", New status: ");
    Serial.println(message.getFloat());
   }
  } 

I am able to get the value from the second node. But was just wondering why '0' is used in the request(0, V_VAR1) call when the value is being directly sent from the 1st node to the 2nd node