diff --git a/Example_Programs/programming_concpets/calculator_complex/README.md b/Example_Programs/programming_concpets/calculator_complex/README.md
index a2ffd3bf..0ba4d2b4 100644
--- a/Example_Programs/programming_concpets/calculator_complex/README.md
+++ b/Example_Programs/programming_concpets/calculator_complex/README.md
@@ -50,3 +50,4 @@ typedef struct complex_t {
 * By [Annarose K](https://github.com/AnnaroseK/SFID-255976complex_calculator)
 * By [Jeevak Raj](https://github.com/JeevakRaj/LTTS_Stepin_Exercises/tree/main/Question_1a_Complex_Calculator)
 * By [Vivek Valagadri](https://github.com/vivekvalagadri/Stepin.git)
+* By [260735-Vaibhav Gaur](https://github.com/VaibhavGaur56789/MiniProject_Template/tree/master/Example_Programs/programming_concpets/calculator_complex)
diff --git a/Example_Programs/programming_concpets/calculator_complex/main.c b/Example_Programs/programming_concpets/calculator_complex/main.c
index 5833eb24..afec6328 100644
--- a/Example_Programs/programming_concpets/calculator_complex/main.c
+++ b/Example_Programs/programming_concpets/calculator_complex/main.c
@@ -1,7 +1,26 @@
-#include <stdio.h>
-#include "complex_calculator.h"
-int main()
-{
-    //TODO Write all the logic for Calculator app
-    printf("Complex calculator ");
+#include "stdio.h"
+#include "conio.h"
+#include "inc\complex_calculator.h"
+
+int main(){
+    complex_t a = {1, 1}, b = {3, 1}, c = {0, 0};
+    
+    complex_sumcd(&a, &b, &c);
+    printf("%f %f\n\n", c.real, c.imaginary);
+    
+    c.real = 0.0;
+    c.imaginary = 0.0;
+    complexSub(&a, &b, &c);
+    printf("%f %f\n\n", c.real, c.imaginary);
+
+    c.real = 0.0;
+    c.imaginary = 0.0;
+    complexMul(&a, &b, &c);
+    printf("%f %f\n\n", c.real, c.imaginary);
+
+    c.real = 0.0;
+    c.imaginary = 0.0;
+    complexDiv(&a, &b, &c);
+    printf("%f %f\n\n", c.real, c.imaginary);
+    return 0;
 }
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