With this official twitter SMS service Zong customers can use twitter from their phone with sms. 
Zong customers can send status updates, retweet statuses, direct messages and can receive sms notifications as well.
update: Normal sms rates apply but free if you have SMS package
To start using Twitter sms service with zong, send Start from your Zong to 40404 as SMS. Then its all easy to setup your existing twitter account or signup for an new account.
To get SMS notifications for your followers you must activate SMS notification on them one by one.
Go to twitter Mobile settings at twitter.com to change other Mobile notifications and settings.
Follow us on twitter with your Zong for telecom news sms notifications. To do so first connect or signup with Twitter SMS service with your Zong, then send follow #HabibManjotha command and then ON HabibManjotha command to turn On SMS notifications for @HabibManjotha
Other Twitter SMS commands
Do more than Tweet! Send these commands to Twitter:
- FOLLOW username
- Start following a user
- UNFOLLOW username
- Stop following a user
- ON/OFF
- Turn all Tweet notifications on or off
- ON/OFF username
- Set Tweet notifications for a user on or off (you’ll still be following them even if you set it to off)
- GET username
- Shows you the latest tweet from any user
- RT username
- Retweet a user’s latest tweet
- FAV username
- Favorite a user’s latest tweet
- D username your-message
- Send a direct message to a user
