Create service to run after time

[chetan deol]

How to create the service which will after every 5 mins.

package com.my.service;

import com.my.myprovider.Constants;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import android.os.SystemClock;
import android.util.Log;
import android.widget.Toast;

public class MyService extends Service{
	private static final String ACTION_RESCHEDULE =
        "com.my.service.intent.action.SERVICE_RESCHEDULE";
	@Override
	public IBinder onBind(Intent intent) {
		// TODO Auto-generated method stub
		return null;
	}
	
	@Override
	public void onStart(Intent intent, int startId) {
		// TODO Auto-generated method stub
		super.onStart(intent, startId);
	}
	
	@Override
	public int onStartCommand(Intent intent, int flags, int startId) {
		// TODO Auto-generated method stub
		Log.d(Constants.TAG, "Service started");
		Intent i = new Intent();
        i.setClassName("com.my.service", "com.my.service.MyService");
        i.setAction(ACTION_RESCHEDULE);
        PendingIntent pi = PendingIntent.getService(getBaseContext(), 0, i, 0);        
        AlarmManager alarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);
        alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime()
                + (2000 * 1000), pi);
        Toast.makeText(this, "Service rescheduled", Toast.LENGTH_SHORT).show();   
        System.out.println("Service rescheduled");
        stopSelf(startId);        
        return START_NOT_STICKY;
	}
	
	@Override
	public void onDestroy() {
		// TODO Auto-generated method stub
		super.onDestroy();
		Toast.makeText(this, "Service stopped", Toast.LENGTH_SHORT).show();
	}

}

In this case service gets rescheduled but only once.It does not get rescheduled for each time interval.
I have broadcast receiver which starts this service once the phone boots up.
I am designing a birthday reminder application.

Thanks in adavance.