Tamil Nadu Electricity Board [TNEB] — tneb name transfer

I have bought a second hand flat and i am trying to do the name transfer, one of the employee asked 2000 rs for name transfer, is this really required this amount for name changing, i have my sale deed and last three months payment bill. Kindly do the needful. I am in perumbakkam and my eb office is in sithalapakkam. They are asking 2000 rs for name transfer, please take necessary action for this.