Recently Razvi(1989) has suggested four sampling schemes, two of which are extensions of Midzuno (1952) and Sen's (1952) sampling scheme and the other two are extensions of Despande's (1982) scheme. In this paper all the four Razvi's schemes are modified using the revised probabilities of selection of the original schemes. It has been shown that at least for one particular case in each scheme, all the four modified schemes turn out to be Midzuno-Sen Scheme utilizing the revised probability of selection.