here is my code:

  OkHttpClient client = new OkHttpClient();

            RequestBody requestBody = new FormEncodingBuilder().
                    add("pinCode", "400015")
                    .add("date", "2016-10-27 22:39:00")
                    .add("deviceId","000000000000000")
                    .add("gender","1")
                    .add("latitude", "8.9927476")
                    .add("longitude", "72.8310679")
                    .add("serviceIds[0]", "41")
                    .add("serviceIds[1]", "42")
                    .add("serviceIds[2]", "43")
                    .add("appVersion", "2.0")
                    .add("deviceType", "Android")
            .build();

            Request request = new Request.Builder()
                    .url("https:....")
                    .header("Content-Type:", "application/json")
                    .post(requestBody)
                    .build();

            try {
                Response response = client.newCall(request).execute();
                String data = response.body().string();
                Log.d("data", "run: " + data);