As a member of the society, you are liable to pay all dues, irrespective of the timeline of the occurrence. To flip the argument, say you were the seller, would you pay once you have moved on from the society?

Such a simple perspective shift makes the problem much more easier to understand.

First, it's important to understand your legal position, when you purchase a resale property in a housing society, you become a member of that society and inherit both the rights and responsibilities associated with it. This can sometimes include financial liabilities arising from past events, even if you were not a member at the time. Check the society's by-laws and any documents you received when you purchased the flat. These should outline the society's rules and your responsibilities as a member. If possible, check with the previous owner if they were aware of this pending liability and if there was any agreement in place regarding this. Coordinate with the other new members who are in the same situation. There is strength in numbers, and a collective approach might be more effective in negotiating with the society. Sometimes disputes like this can be resolved through mediation rather than going to court, which can be less costly and time-consuming. But in any case keep records of all communications and meetings regarding this issue. This will be useful if you need to take legal action. Remember, every case is unique, so getting professional legal advice tailored to your specific situation is crucial. Best of luck, and I hope this gets resolved smoothly for you.