I did it last year.
Get a pen & money and visit DC/SSP Office Zilla Ketchary (opposite Civil Line college).
Go the photocopy shop inside and ask him to give you file for license renewal.
He will give you perhaps Rs. 200~300. (alongwith TCS slip. Fill your address on it).
Fill it carefully.
Ask them how much tickets you have to paste, they will inform like 400 or 500. Go to the ticket shop and purchase the ticket and paste it on the backside of the form which you filled in your file.
Go to the counter where you can see the Que outside the room for photo & perhaps the finger prints. They will ask couple of questions about address change, contact details, etc.
Now deposit that file at another counter with bars or at TCS Counter. They will give you slip.
Within one week you will receive your new computerized license at home by TCS.