How to disable default Modelstate.Isvalid on one column

Using ASP.net Core 3 and Identity and disabling client side validation input

       public class InputModel
       {
           [Required]          

           public string Name { get; set; }

           [Required]

           [EmailAddress]

           [Display(Name = "Email")]

           public string Email { get; set; } 

           [Required]

           [StringLength(100, ErrorMessage = "The {0} must be at least {2} and at max {1} characters long.", MinimumLength = 6)]

           [DataType(DataType.Password)]

           [Display(Name = "Password")]

           public string Password { get; set; } 

           [DataType(DataType.Password)]

           [Display(Name = "Confirm password")]

           [Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]

           public string ConfirmPassword { get; set; }
       } 

       public async Task<IActionResult> OnPostAsync(string returnUrl = null)
       {
           // Some codes here
           if (ModelState.IsValid)
           {
               // Some codes here
               .   .   .
           }
       }