A landlord granted power of attorney to B, who sold a plot to C via a registered sale deed. When B couldn't provide possession, the sale deed was cancelled by both B and C. The landlord (A) now wishes to sell the plot again. Experts advise that since the sale deed was cancelled, A is the absolute owner and can legally resell the plot. A subsequent attempt by B and C to 'retain' the cancelled sale deed would be invalid as it's already nullified.