Android : Programmatically created new calendar is not visible ,why? in android

I am doing backup and restore of calendars, During restore if calendar is not present in phone(but related account is present), i am creating new calendar with the following code, it has successfully inserted into db (i can see the return value of URI and id). But in calendar application it is not visible, i have made the visible flag with 1 on insertion but still not working.Can someone Help.

final String INT_NAME_PREFIX = "priv";
                Uri calUri = CalendarContract.Calendars.CONTENT_URI
                        .buildUpon()
                        .appendQueryParameter(
                                CalendarContract.CALLER_IS_SYNCADAPTER, "true")
                        .appendQueryParameter(Calendars.ACCOUNT_NAME,
                                mCurrentMirrorItem.ACCOUNT_NAME)
                        .appendQueryParameter(Calendars.ACCOUNT_TYPE,
                                mCurrentMirrorItem.ACCOUNT_TYPE).build();

                String dispName = mCurrentMirrorItem.CALENDAR_DISPLAY_NAME;
                String intName = INT_NAME_PREFIX + dispName;
                ContentValues contentValues = new ContentValues();

                if (columnNames.contains(Calendars.ACCOUNT_NAME)) {
                    contentValues.put(CalendarContract.Calendars.ACCOUNT_NAME,
                            mItem.ACCOUNT_NAME);
                }
                if (columnNames.contains(Calendars.ACCOUNT_TYPE)) {
                    contentValues.put(CalendarContract.Calendars.ACCOUNT_TYPE,
                            mItem.ACCOUNT_TYPE);
                }
                if (columnNames.contains(Calendars.NAME)) {
                    contentValues.put(CalendarContract.Calendars.NAME, intName);
                }
                if (columnNames.contains(Calendars.CALENDAR_DISPLAY_NAME)) {
                    contentValues.put(
                            CalendarContract.Calendars.CALENDAR_DISPLAY_NAME,
                            mItem.CALENDAR_DISPLAY_NAME);
                }
                if (columnNames.contains(Calendars.CALENDAR_COLOR)) {
                    contentValues.put(CalendarContract.Calendars.CALENDAR_COLOR,
                            mItem.CALENDAR_COLOR);
                }
                if (columnNames.contains(Calendars.CALENDAR_ACCESS_LEVEL)) {
                    contentValues.put(
                            CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL,
                            Calendars.CAL_ACCESS_OWNER);
                }

                if (columnNames.contains(Calendars.OWNER_ACCOUNT)) {
                    contentValues.put(CalendarContract.Calendars.OWNER_ACCOUNT,
                            mItem.ACCOUNT_NAME);
                }
                if (columnNames.contains(Calendars.VISIBLE)) {
                    contentValues.put(CalendarContract.Calendars.VISIBLE, 1);
                }
                if (columnNames.contains(Calendars.SYNC_EVENTS)) {
                    contentValues.put(CalendarContract.Calendars.SYNC_EVENTS, 1);
                }

                returnUri = cr.insert(calUri, contentValues);
                long eventID = Long.parseLong(returnUri.getLastPathSegment());
                calid = String.valueOf(eventID);

                Log.d(tag,"calendar name: "+mCurrentMirrorItem.CALENDAR_DISPLAY_NAME+"\tNew calendar id is: "+calid+"\nInserted URI: "+returnUri);