diff --git a/README.md b/README.md
index e3ffbcf..536a6f3 100644
--- a/README.md
+++ b/README.md
@@ -2,18 +2,21 @@
 
 # Digitized-Environment-Monitoring-System-DEMS
 
-![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/0913bfe5-2c7b-473e-a7da-ddb9aa8f0dac)
-
 <details>
   <summary color= blue >Table of Contents</summary>
 <li>Introduction</li>
-<li>DEMS Working Details </li>
+<li> DEMS Working Details </li>
 <li> Prerequisites and Techstack</li>
-<li> Steps for execution</li>
-<li> Usage</li>
+<li> Circuit</li>
+<li> Screenshots of output</li>
+<li>References</li>
 </details>
 </br>
 
+![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/0913bfe5-2c7b-473e-a7da-ddb9aa8f0dac)
+
+
+
  <p align="right">(<a href="#readme-top">back to top</a>)</p>
   </br>
   
@@ -85,6 +88,7 @@
 - Diagram
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/f8b9cc13-78a8-42cb-992b-3619c31b0272)
 
+
 - Working-circuit
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/0913bfe5-2c7b-473e-a7da-ddb9aa8f0dac)
 
@@ -103,6 +107,8 @@
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/ebb8def5-d0a1-42ab-87ef-b3f85aa9f5b8)
 
 
+   <p align="right">(<a href="#readme-top">back to top</a>)</p>
+  </br>
  
 - Working- circuit
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/65f08380-b350-4576-bc25-4da1df15f4bb)
@@ -115,6 +121,8 @@
 
  
 
+   <p align="right">(<a href="#readme-top">back to top</a>)</p>
+  </br>
 
 - Working-compilation
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/0c4dc23f-ace5-4f0d-b48b-ef8b9ff494d3)
@@ -126,6 +134,9 @@
   ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/8307e495-2eab-4b7e-9bfc-9297c0373aa3)
 
  
+   <p align="right">(<a href="#readme-top">back to top</a>)</p>
+  </br>
+  
     - Temperature (ThinkSpeak Visualization)
       ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/4b76196f-57bf-4f31-b213-b76ce3ccb89e)
 
@@ -136,6 +147,9 @@
       ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/ad549bbe-e45a-4bac-8a86-80e77b1bacb3)
 
   
+   <p align="right">(<a href="#readme-top">back to top</a>)</p>
+  </br>
+  
     - Dust Density (ThinkSpeak Visualization)
      ![image](https://github.com/ankitacoder3/Digitized-Environment-Monitoring-System-DEMS/assets/73939061/0a33b803-f536-46b4-aa30-85e8f23382a5)
 
@@ -147,3 +161,17 @@
  
   <p align="right">(<a href="#readme-top">back to top</a>)</p>
   </br>
+
+## References
+
+-	https://create.arduino.cc/projecthub/nikhileswari/light-sensor-using-arduino-07cd9c
+-	https://arduinogetstarted.com/tutorials/arduino-light-sensor
+-	https://create.arduino.cc/projecthub/igorF2/arduino-uno-mini-31b555?ref=tag&ref_id=sensor&offset=6
+-	https://roboindia.com/tutorials/nodemcu-dht11-thingspeak-data-upload/ 
+-	https://lastminuteengineers.com/bmp180-arduino-tutorial/ 
+
+
+  
+   <p align="right">(<a href="#readme-top">back to top</a>)</p>
+  </br>
+