Steps Data receive from History api is not matched with google fit

I want google fit steps count in my application, for that I am using History api, provided by google. I found that steps receive from history api is not matched with google fit even if i used same code provided by google. Below is my code.

  Calendar cal = Calendar.getInstance();
        Date now = new Date();
        cal.setTime(now);
        long endTime = cal.getTimeInMillis();
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        long startTime = cal.getTimeInMillis();

        DataSource ESTIMATED_STEP_DELTAS = new DataSource.Builder()
                .setDataType(DataType.TYPE_STEP_COUNT_DELTA)
                .setType(DataSource.TYPE_DERIVED)
                .setStreamName("estimated_steps")
                .setAppPackageName("com.google.android.gms")
                .build();

        DataReadRequest readRequest = new DataReadRequest.Builder()
                .aggregate(ESTIMATED_STEP_DELTAS, DataType.AGGREGATE_STEP_COUNT_DELTA)
                .aggregate(DataType.TYPE_DISTANCE_DELTA, DataType.AGGREGATE_DISTANCE_DELTA)
                .aggregate(DataType.TYPE_ACTIVITY_SEGMENT, DataType.AGGREGATE_ACTIVITY_SUMMARY)
                .bucketByTime(1, TimeUnit.DAYS)
                .setTimeRange(startTime, endTime, TimeUnit.MILLISECONDS)
                .build();

  Task<DataReadResponse> result = Fitness.getHistoryClient(getApplicationContext(),
                GoogleSignIn.getLastSignedInAccount(getApplicationContext())).readData(readRequest);

Any Help will be highly appreciated, I am stuck with this issue from long time and even not finding any proper tutorial from google.

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