What is difference b/w A katha and B katha?

[koolanil16]

Hello Friends,

I would like to know how to check if the site is A katha or B katha?

Recently we had purchased from my landlord, they have paid the betterment charges of some 11 laks odd.

I have got all the documents with me like, sales deed, mother deed, katha certificate, EC, Tax paid receipt (12-13).
I am unable to identify if this is A or B katha.

The option i have is to show to a BBMP officer or a broker who can get me conversion done.
I have to start construction for my home and i need to approach the bank, with out approval from BBMP i cannot do this.

Kindly help me here.
Thanks,
Anil Kumar - 9986668124