diff --git a/Todo_List b/Todo_List
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+++ b/Todo_List
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+Subproject commit 65a4118897e9586de797facd20489fae1ddd1b47
diff --git a/baishali_issue_21.py b/baishali_issue_21.py
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index 0000000..3ca46cb
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+++ b/baishali_issue_21.py
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+# temperature converter issue 21
+unit=input("Is this temperature in Celsius or Fahrenheit? (C/F): ")
+temp= float(input("Enter the temperature you want to convert: "))
+if unit=="C":
+    converted_temp= (temp * 9/5) + 32
+    print(f"{temp} degree Celsius is equal to {converted_temp} degree Fahrenheit.")
+
+elif unit=="F":
+    converted_temp= (temp - 32) * 5/9
+    print(f"{temp} degree Fahrenheit is equal to {converted_temp} degree Celsius.")
+else:
+    print("Invalid unit. Please enter 'C' for Celsius or 'F' for Fahrenheit.")
+    
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