<div class="col-lg-6">
                    <div class="mb-3">
                        <label for="basicpill-namecard-input">First Name Of Director/Partner - '+ i +'<span class="ast">*</span></label>
                        <input type="text" class="form-control first_name" id="first_name_'+ i +'" name="first_name_'+ i +'" required>
                    </div>
                </div> 

//Value of name field will be increase automatically like name=first_name_1, name=first_name_2 and so on. want to make those values different from each other , i am using jQuery validation plugin for validation