question, which, therefore, requires consideration is as to whether for satisfying the requirements of Section 58(f) of the Transfer of Property Act, it was necessary to deposit documents showing complete title or good title and whether all the documents of title to the property were required to be deposited. A fortiori the question which would arise for consideration is as to whether in all such cases, the property should have been acquired by reason of a registered document. xxx 38. In K.J. Nathan v . S.V. Maruty Reddy [AIR 1965 SC 430: (1964) 6 SCR 727] this Court held: (AIR pp. 435- 36, para 10) “10. The foregoing discussion may be summarised thus: Under the Transfer of Property Act a mortgage by deposit of title deeds is one of the forms of mortgages whereunder there is a transfer of interest in specific immovable property for the purpose of securing payment of money advanced or to be advanced by way of loan. Therefore, such a mortgage of property takes effect against a mortgage