Sale of property bequeathed

The beneficiary wants to sell the property (self acquired by the testator father) bequeathed to him in the will (unregistered and holographic and attested by two witnesses) made by the father. The beneficiary has khata in his name also. Though the property is in very much demand no buyer has come to buy. We do not understand the reason. Please tell us the reason and the remedy for it. Property is in Bangalore and the will is also made in the same place.