The Electricity company is required to give 7 days' notice. You seem to state that prima facie there is a case to disconnect your power supply. Your complaint is that you were not given the notice. You do not say anything regarding what you would have done if you had got 7 days' notice.
Now you file a case in a court of law against the power supplier for not for disconnecting, but for not giving you 7 days notice.
What will be the remedy that you seek?
1. Reconnect the power supply, give you notice, wait for 7 days and then disconnect.
You will have to tell the court that
2. 1. during 7 days you will do something that will entitle you to claim that your power not be disconnected.
2.2 though you may not be able to get entitled for the power connection, you may do something that will enable you to save yourself the inconvenience of not having power connection.
Your case is weak. Why did you not pay for 1 1/2 years? There are some people who pay their debts only if they are cornered. Are you one like that? Did you think "why pay? In any case I will be getting notice and then I shall pay. Again I shall stop paying until I get my next notice".
The lapse on the part of the electricity company of not giving you adequate notice is, if at all, a minor one. Every provision in every law has a purpose. The purpose of requirement of notice is to protect genuine consumers who inadvertently fail to pay. One cannot claim remedy just because the law says. You may not have been given notice of disconnection. But did you ever receive demand notice for outstanding arrears at anytime during the 1 1/2 years?
Does the law say anything about the penalty the power supply company has to pay for not giving notice?