I agree with u Debi. No. 27 of exemption list just mentions services by way of loans where consideration is in form of interest is excluded. However the ultimate recovery /collection /consideration is by way of selling a mortgaged/pledged asset by the banker, then the same might not fall within the parameters of No. 27.
It then finally accounts to "transaction in money for consideration" as the consideration will not be the interest ultimately.
Inviting your comment on the same.
Thanks for your time.