If a relative used a power of attorney to sell your property in Mumbai without your consent, this is a serious matter, but Indian law offers strong remedies to challenge such fraudulent transactions. If the power of attorney was misused, exceeded its authorized scope, or was forged altogether, the resulting sale deed can be challenged as void or voidable before a civil court.

Your first step should be to file a civil suit for cancellation of the sale deed and declaration of title, supported by evidence such as the original POA document, its stated scope, and proof that the sale exceeded or violated those terms. Simultaneously, filing a police complaint for cheating and forgery under the Bharatiya Nyaya Sanhita strengthens your position and creates an official record of the fraud.

You may also seek an injunction to prevent the buyer from further transferring or developing the property while litigation is pending, protecting your interests during the case. Given the involvement of a relative, courts often examine the transaction closely for fraud or breach of trust.

These cases require careful handling of both civil and criminal proceedings simultaneously; the team at Aapka Legal Advice Acting decisively against unauthorized use of power of attorney protects both your property rights and your legal standing.