Got to know this news from Tamilulagam discussion list.
Tamil Nadu Government has published its school texts books online(its has been mentioned as for viewing purpose only).
Its available at this URL: http://www.textbooksonline.tn.nic.in/
It might be helpful in many ways to students and parents(who are computer savvy). And more importantly it provides open access to the content thats being taught in Tamil Nadu schools.
I dont think any other state in India has done this yet.
Good move by Tamil Nadu Govt.