Try adding r: in front of your code, and replace backward slash with forward slash:
Book1 = pd.read_excel(File_path=r"C:/Users/shubh/Desktop/Book1.xlsx", sheet_name="Sheet1")
There are loads of sources to read from about what r: does to your path.
The r'..' string modifier causes the '..' string to be interpreted literally. That means, r'My\Path\Without\Escaping' will evaluate to 'My\Path\Without\Escaping' - without causing the backslash to escape characters. The prior is equivalent to 'My\\Path\\Without\\Escaping' string, but without the raw modifier.
Note: The string cannot end with an odd number of backslashes, i.e r'Bad\String\Example\' is not a correct string.
Taken from:
Unknown python expression filename=r'/path/to/file'