Banking · Securities and Lien

Regarding the securities and charges provided by a customer to a bank, consider the following statements: i. In a pledge of shares, the bank holds the shares as special property and has the power of sale upon default after giving reasonable notice to the borrower. ii. A mortgage by deposit of title deeds (MDOTD) is an equitable mortgage that is universally exempt from compulsory registration under the Registration Act, 1908 in all Indian states. iii. The bank's right of set-off can be exercised only when the customer's accounts are held in the same name and the same legal capacity, ensuring the essential element of mutuality. iv. Assignment of an actionable claim (like book debt) is perfected by execution of writing and does not legally mandate written notice to the debtor to complete the transfer between assignor and assignee, though notice is advisable. Which of the statements given above are correct?