how to implement POST method encoded parameters request in Alamofire?

Question

i am trying to implement post request with encoded parameters but its not working. the request on postman is looking like this

enter image description here

i am trying with this code

let params = [ "PIDNO":self.defaults.value(forKey: "pidno") as? String ?? "" ,
                     "GENDER":self.gender!,
                     "TENANTNAME":self.txtTenantName.text ?? "",
                     "EMAIL":self.txtEmailId.text ?? "",
                     "OFFPHONE":self.officeMobile.text ?? "",
                     "MOBILE":self.txtMobile.text ?? ""
            ] as [String : String]
        
        let url =  SharedInstance.sharedInstance.url+"UpdateTenantProfile/UpdateTenantProfiledetails?profileDetail="
                let headers: HTTPHeaders
                    headers = ["Content-type": "application/json"]
        AF.request(url,method: .post, parameters: params,encoding: JSONEncoding.default, headers: headers)
            .responseJSON { response in
                debugPrint(response)
                print(response.result)
            }

but on the server-side, I am getting null parameters