diff --git a/binary search.c b/binary search.c
new file mode 100644
index 0000000..51e428b
--- /dev/null
+++ b/binary search.c	
@@ -0,0 +1,34 @@
+#include<stdio.h>
+#include<stdlib.h>
+int main()
+{
+	int beg=0,end=10,mid,item;
+	int a[10]={2,4,6,8,10,12,14,16,18,20};
+	printf("enter the no. you want to search\n");
+	scanf("%d",&item);
+//	printf("enter the value of begining and ending index\n");
+//	scanf("%d %d",&beg,&end);
+	mid=(int)((beg+end)/2);
+	mid--;
+	while(beg<=end && a[mid]!=item)
+	{
+		if(item<a[mid])
+		{
+			end=mid-1;
+		}
+		else
+		{
+			beg=mid+1;
+		}
+		
+		mid=(beg+end)/2;
+	}
+	if(a[mid]==item)
+	{
+		printf("the index is %d\n",mid);
+	}
+	else
+	{
+		printf("no. not found\n");
+	}
+	main();