Jodhpur Vidyut Vitran Nigam Limited [JDVVNL] — to change the customer name

Respected madam/sir
With due respect i want to your guidance on my issue that i want to make changes in customer name and mobile no. Because the house where i am living at present i have purchased from the past owner and the electricity bill is approaching to me on his name. I want it on my own name.
So pls sir/madam guide me.
Regards
Lakhvindar singh maan
Ward no. 17
Anoopgarh
Sriganganagar