- Your parent is having right to live in the society peacefully without any interruption from any one , and the said installation of the AC is against the rule and detrimental for her heath.
- Lodge a complaint before the police after stating the facts in details and give one copy before panchayat as well.
- If, no response, then file a Mandatory injunction suit before the court for removing the AC from there permanently.
- Or you can send a notice before filing the said case.
- Cost depend upon the lawyer you engaged, however this case will be finished on 2 or 3 hearing , hence talk any lawyer locally.