TN Assembly Elections
Here is the information to access Voters List in Tamil Nadu. You can search for your name in electoral rolls through the following steps. Currently the 2009 Electoral Rolls of Tamil Nadu is available in Tamil language.
Here is the link from where you can get the details:
You need to know the district you belong to along with the Assembly Constituency. On selecting the two you will get a list of street names along with the polling stations. Find the one that is near your residential area and see if your name is included in the voters list.
For people in Chennai - you can find your name in Chennai Voters list by following the above steps for all the 3 parliament constituencies in Chennai - North, South and Chennai Central.
Read my previous post on Tamilnadu General Elections
Tamil Nadu Chief Electoral Officer