New-OMIS/app/Models/Castes.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Castes extends Model
{
    use HasFactory;

    protected $table = 'tbl_castes';
    protected $primaryKey = 'caste_id';

    protected $guarded = [];
}