First Mortgage to A of 50 bhigas and then second Mortgage to B of 8 Bhigas of these 50 Bhigas and 4 ...........

First Mortgage to A of 50 bhigas and then second Mortgage to B of 8 Bhigas of these 50 Bhigas and 4 other Bhigas. A obtained a decree for sale on his mortgage without making B a party and purchased the 50 Bhigas himself. B then sued to redeem; A and he had the right to redeem the 50 Bhigas, but if this had been allowed A as assignee of the equity of redemption could have again redeem the 8 bhigas and 4 bhigas of the puisane Mortgage. B can redeem the 50 Bhigas ? Discuss.    (5 marks)