Well, the consumer forum decision seems to be faulty and you should have preferred appeal agaunst it.
If the respondent is not coming and you rpove the service of notice on them , then the case should have been heard by now. It is more than 2 years and by now the case must have been heard.
Take help of another local lawyer.
There a Calcutta High Court decision whereby it is decided that new owner is not obliged to clear dues of past owner and for this fresh connection cane not be refused.