1. The Guarantor-Wife is by legal default, liable for the loan amount taken by the Husband and if the Agricultural Land is pledged as lien, then it would be unwise to sell the mortaged property and would amount to criminal Fraud and Forgery, against the Bank.
2. Technically, the guarantor-lien may have been marked on the Agricultural land records, by the Revenue authorities. AND if "B" (new buyer) does a "Search" of the agricultural land records, the same should be notable, by the search-advocate. However an "Agreement to Sell" .OR. an MOU, can be executed (between A & b) with conditional clauses, meaning subject to clearing of the loan-guarantor-lien notings from the land records. This would circumvent the criminal angle of Fraud & Forgery, on the Guarantor-Wife.
Keep Smiling .... Hemant Agarwal